Portrayed by Rachel Bloom, Rebecca Nora Bunch is a lawyer originally from Scarsdale, New York, who has obsessive tendencies and traits of anxiety and depression. She often acts on impulsive decisions, such as moving to West Covina to be with Josh, her childhood boyfriend, after having a five-minute conversation with him. When stressed, Rebecca often hallucinates, such as seeing her younger self. As she is prone to impulsive decisions, she spends over $10,000 on Josh in her attempts to win him back. After being dumped by both Josh and Greg, she ends up burning her house down in a fit of anxiety-fuelled rage. Rebecca has a fear of rejection and does not react well under pressure, which leads her to spiral after bad things happen, demonstrated in seasons one and three. After she is left at the altar in the season two finale, she realizes that she has a problem, which she tries to fix but ultimately moves her obsession onto Nathaniel, which leads to her pushing her ex-boyfriend, Trent off the roof of a building. Rebecca also has bisexual tendencies. She is diagnosed with Borderline Personality Disorder in season three, after a suicide attempt.
Josh Chan
Portrayed by Vincent Rodriguez III, Joshua "Josh" Felix Chan is Rebecca's dim-witted childhood boyfriend, who centers as the object of Rebecca's affection throughout seasons one and two. During season one, he relocates himself from New York back to West Covina to be with his ex-girlfriend, [|Valencia Perez], and is often seen with his friends: Greg, Hector and "White Josh". He is usually optimistic and friendly, with a positive outlook on life. He and Greg have a falling out during season 1 due to their feelings for Rebecca, but work things out in season 2 before Greg moves to Atlanta to attend Emory University. Josh is of Filipino descent and demonstrates commitment issues in his relationships, shown as he refuses to propose to Valencia and as he leaves Rebecca at the altar to become a priest. He lacks awareness and has a tendency to be self-centered. He is a black-belt martial artist and worked for a Hawaiian-themed electronics retailer.
Greg Serrano
Portrayed by Santino Fontana and Skylar Astin, Greg Serrano is Josh's best friend who works as a bartender. Unlike Josh, Greg is intelligent, pessimistic and cynical, with a longing to move away from West Covina. From the moment he meets Rebecca, they begin an on-and-off relationship, due to him having complicated feelings for her. He also has a relationship with Heather, Rebecca's neighbor, during season one, until Heather breaks it off. Greg suffers with alcohol addiction and, between seasons one and two, is arrested for driving drunk, which forces him to attend AA meetings and hide from his friends. Like Rebecca, Greg was raised mainly by a single parent, and he has a strong bond with his father, who suffers from emphysema. Greg has a strained relationship with his mother, who moved away, remarried and started another family. However, they begin repairing their relationship during season one. Greg and Josh have a falling out during season one due to their feelings for Rebecca, but patch up their differences in season two before Greg departs for graduate school. At the start of season two, his father helps him to achieve his full potential, leading Greg to leave West Covina to attend business school at Emory University. He struggles with the decision, however, due to his complicated feelings with Rebecca.
Paula Proctor
Paula Proctor is Rebecca's co-worker and best friend. Originally from Buffalo, New York, she lives in West Covina with her husband, Scott, and children Brendan and Tommy. Paula forms an alliance with Rebecca over Josh but regularly goes over-the-top with her schemes, as a way to distract herself from her failing marriage. During helping Rebecca with a scheme, Paula and her husband rekindle their romance. After Rebecca begins sleeping with Greg, Paula realizes she has gone overboard and decides to get a degree in law. In her law class, she meets Sunil and begins to shut Rebecca out, including not telling her when she has an abortion. Towards the end of season three, Paula finds out about Rebecca's lies, and their relationship becomes strained once again. Champlin has received significant praise for her portrayal of Paula, especially with her abortion storyline.
Darryl Whitefeather
Portrayed by Pete Gardner, Darryl is Rebecca's co-worker, who sometimes struggles with keeping his emotions in check. Initially, Darryl is shown as a recent divorcée trying to get custody of his daughter, however he was ultimately considered the breakout star of season one due to his storyline with his sexuality, as he figures out he is bisexual. Later, he begins a relationship with [|Josh Wilson], the most stable relationship of the series, though they ultimately break up due to Darryl's need to have a child. Darryl projects his feelings of loneliness onto Paula, who he persistently calls his 'best friend', even though she disregards his feelings. He is prone to feelings of loneliness and has a psychological need to be liked by others. His break-up with Josh leads him to have a child, with Rebecca's egg, which Heather carries as surrogate. During the season three finale, their baby is born, and him and Josh reconcile. He names the baby "Hebecca Whitefeather".
Heather Davis
Portrayed by Vella Lovell, Heather is Rebecca's neighbor when she first moves to West Covina. Originally, she speaks to Rebecca as a means of getting a good grade in her 'abnormal psych' class. She begins a relationship with Greg, but ultimately breaks it off after seeing that he still has feelings for Rebecca. Her parents are displayed as being extremely supportive, which leads to her developing an aimless and apathetic personality, opposing Rebecca's parents. During season two, she becomes the face of the feminine care product "Miss Douche" and moves into an apartment with Rebecca. Heather repeatedly tries to get out of trouble by stating that she is a student, which changes in season three when she is forced to graduate against her will. She later becomes a regional manager for Home Base. As her life continues to go to higher levels, she begins a relationship with Hector and becomes the surrogate for Darryl's baby.
Valencia Perez
Portrayed by Gabrielle Ruiz, Valencia is Josh's teenage sweetheart, whom Josh moves back to West Covina to be with. Throughout season one, Valencia is seen as an antagonist, rivalling with Rebecca for Josh's love. However, since then, her perception has changed from an antagonist to a protagonist. Originally, Valencia is seen as a scary woman who doesn't eat properly, however after breaking up with Josh, she begins to eat healthier and add fat into her diet. When Rebecca and Heather bump into her, Rebecca grows obsessed with bonding with her and kidnaps her as a result; ultimately, the three form a girl group. Valencia also plans Rebecca and Josh's wedding, and after Rebecca is left at the wedding, Valencia helps with a revenge plot. After Rebecca's attempted suicide, Valencia breaks down, claiming she needs her and that she is extremely special to her. Valencia is in a relationship with Beth, making her the third main bisexual character on the series.
Josh Wilson
Portrayed by David Hull, Josh Wilson, commonly referred to as White Josh or WhiJo by his friends, is a laid-back, caucasian male who bears a resemblance to Josh Chan. He is often seen with either Darryl, or Josh, Greg and Hector. He is often called judgy by his friends, yet is more practical than Greg and Josh. He is openly gay and, attracted to older men, entered into a relationship with Darryl after he came out as bisexual; ultimately they break up over their disagreements on having a child, however they reconcile after the baby is born. After their breakup, he befriends Nathaniel and the two enter into an extreme workout regime. He has never understood his friends' obsession with Rebecca, the two who never mesh themselves as friends except in social situations with their mutual friends.
Nathaniel Plimpton III
Portrayed by Scott Michael Foster, Nathaniel Plimpton is a successful lawyer who buys into Whitefeather & Associates and becomes Rebecca's new boss. He and Rebecca have a complicated relationship due to mutual dislike yet intense physical attraction to one other, and explore a relationship through part of season 3. After Rebecca calls it off over her fears that she is becoming obsessed again, he begins a relationship with Mona, however throughout the whole nine months of the relationship he engages in casual sex with Rebecca. When Rebecca gets arrested for saving his life, he ultimately breaks up with Mona and acts as Rebecca's lawyer. Nathaniel appears to have sociopathic tendencies and little disregard for his actions, and has a fear of not living up to his father's image.
Recurring cast
Introduced in season one
Hector
Played by Erick Lopez
Often seen with Josh, Greg & White Josh, Hector is an unorganised mid-20s male who still lives with his mother, who he describes as his 'best friend'. The two have a podcast together, called Dating for All Ages. Hector oversleeps and fails to understand Greg's alcohol problem. He has always been scared of Valencia, who always dominates him. Throughout season three, he begins a relationship with Heather, and moves out of his house. Hector and Heather eventually get married.
Rebecca's co-worker, who is mute for most of seasons one and two, but finally speaks in Who is Josh's Soup Fairy?. She claims to have spoken since the beginning, without Rebecca ever noticing. When she does speak, she is usually rude, especially to Maya. Mrs. Hernandez is shown to have an active life, including doing parkour on Friday nights.
Paula's husband, whose relationship is strained due to lack of communication. Through Rebecca, the two rekindle their romance, until Scott sleeps with Tanya, his co-worker, leading Paula to kick him out. His absence is fairly short, as he and Paula still love each other, and Scott shows himself to be a very loving and supportive spouse. Scott helps Paula when she has an abortion and encourages her through law school.
Paula's oldest son, who is described as a 'lost cause' and a 'trainwreck'. Brendan is known to leave home for weeks on end, stealing money and partaking in illegal drugs; he also has a large collection of knives. Brendan supports his mother through her abortion, and tries to cheer her up when Rebecca relapses and runs away from home.
Paula's youngest son, who has OCD and ADHD, along with many other mental health-related disorders. Paula and Scott are shown to be neglectful towards him, demonstrated when Paula states she left him in a Barnes & Noble for an entire weekend. He appears to get along well with Rebecca.
A man who went on a date with Rebecca in Season 1. He had carpal tunnel syndrome and was using stress balls to help get rid of it. He reappears in Season 4 as a match Rebecca makes on a dating app. He and Rebecca seem to have a chemistry, and he's even accepting of Rebecca's vaginal infection at the time due to his mother being a gynecologist. Later, he leaves after Greg and Nathaniel show up on her patio and Josh - hearing the commotion - runs outside in nothing but underwear to try and scare away possible feral cats. However, it can be presumed that he and Rebecca are on good terms since he appears at her open mic performance in the series finale.
Rebecca's classmate from Harvard, who she pretends is her fake boyfriend. After Valencia calls him to verify Rebecca's story, he begins to blackmail her into being his girlfriend. She sends him away, however, he comes back in season two, and Rebecca unknowingly takes his virginity. When he finds out about Josh and Rebecca's wedding, he stops the wedding by unleashing Rebecca's past onto Josh, which ultimately leads her to her suicide attempt. He returns again in season three, where he threatens to murder Nathaniel, sending cryptic messages such as, 'If I can't have you, no-one can'. Rebecca stops him by pushing off of a roof, leading her to get arrested for attempted murder.
Rebecca's therapist, whom she often ignores advice from. Rebecca initially goes to meet with Dr. Akopian to get a prescription, and after not being given one, she and Heather break into her house to steal the prescription pad. After being caught, she states that she will only not call the police if Rebecca agrees to do therapy. Noelle and Rebecca are seated next to each other on a flight to New York, where Rebecca has a dream in which Dr. Akopian shows her the truth about her life in West Covina. Later, in season two, when Rebecca is near to figuring out the root of her problems, Josh proposes to her in Noelle's office, angering her. In season three, Rebecca goes to see Dr. Akopian when she is diagnosed with Borderline Personality Disorder, to try to get a new diagnosis, however Dr. Akopian explains to her the diagnosis.
Also known as Father Joseph, Father Brah is a priest who went to high school with Josh, Greg, White Josh, Hector and Valencia, and who often engages in illegal activities, such as smoking weed and gambling. He enjoys basketball and acts as Josh's confidant. He breaks the news to Rebecca that Josh is leaving her at the altar. At their tenth high school reunion, it is shown that Valencia and Father Brah were secretly in love with each other, he for who she almost left Josh in high school.
Rebecca's mother, who is critical, controlling and divorced. Naomi is not very accommodating towards Rebecca, but is shown to care for her deeply.
George
Played by Danny Jolles
A lawyer at Whitefeather & Associates, nobody can remember his name throughout seasons one and two, until Nathaniel and Rebecca get stuck in an elevator. After he makes an impression by refusing to let them out unless they say his name, Nathaniel takes George on as his wingman. Rebecca also uses him, and threatens to kill herself and blame it on him if he doesn't co-operate. He went to high school with Josh, Greg, White Josh, Hector, Father Brah and Valencia, which none of them knew until their "tenth" high school reunion held twelve years after they graduated.
A lawyer at Whitefeather & Associates, who is Canadian and forged his documents, and therefore is in the United States illegally, which Paula knows and uses to her advantage.
An administrative assistant at Whitefeather & Associates who is openly bisexual and forms an alliance with Darryl. She is a funny and chirpy girl who ships White Josh and Darryl to a new level, and her slangs aren’t understood by Darryl.
A lawyer at Whitefeather & Associates, who is often called "Weird Karen". She has a sex toy company under the stage name of Angelique, and shows up at Rebecca's 'gurl group party' dressed as Angelique, with a fake French accent.
First seen in "I'm Back at Camp with Josh!" as one of the campers. Returns in season four as one of Rebecca's fellow prisoners at the women's county jail.
Jim
Played by Burl Moseley
A lawyer at Whitefeather & Associates who seems to have a crush on Rebecca.
Audra Levine
Played by Rachel Grate
Rebecca's nemesis from New York, who works on the Greater City Water case against her during season one. She is determined to prove that she is better than Rebecca by any means necessary. She reappears in seasons two, three, and four.
Greg's father, who smokes and drinks regularly despite having physical health problems. He gives Greg money to go to Emory University. He sleeps with Rebecca during a drunken one-night stand in season 3.
Kevin
Played by Johnny Ray Meeks
Greg and Heather's overly accommodating boss at Home Base. Kevin takes off his shirt when he becomes stressed.
Rebecca's father, who abandoned her at her 12th birthday party, after a heated argument with Naomi. She briefly visits his home in Santa Fe, New Mexico, soon after, but is brought back home by Naomi, at Silas' suggestion. He is ultimately flown out to West Covina for the wedding of Rebecca and Josh, which Nathaniel holds responsibility for, but asks Rebecca for money while he is there. He leaves soon after Josh leaves Rebecca at the altar.
Darryl and Stacy's daughter, who owns pet snails. She pushes Darryl and White Josh to break up over their disagreements.
Stacy Whitefeather
Played by Allison Dunbar
Darryl's ex-wife, and Madison's mother. Initially an antagonist, Rebecca helped Stacy and Darryl come to a consensus over Madison's custody arrangements. Stacy owned shares in Whitefeather and Associates until Bert bought them from her, and lent them to Rebecca.
Bert is a conspiracy theorist, who helps Rebecca in her case against Greater City Water, however, the case is thrown out when Audra Levine reveals that Bert is a diagnosed schizophrenic. He is a member of Rebecca's therapy support group, for people with BPD, after it is revealed he was misdiagnosed. Bert loans Rebecca money for her to buy shares in Whitefeather & Associates and become the senior partner.
Chris
Played by Jacob Guenther
A young boy who is Greg's friend and who also frequents Home Base, the bar where Greg worked and, eventually, Heather works and where Josh's gang frequents, offering precocious commentary.
He ends up being Josh's boss at the electronics store.
Brody
Played by Benjamin Siemon
Aka "Grocery Clerk with Half an Eyelid". First appears at Rebecca's party in "I Hope Josh Comes to My Party". He is super talented, but really self-absorbed.
Paula's friend from law school, with whom she replaces Rebecca. He keeps as a secret from his children that his wife committed suicide nine month ago. Sunil is shown to express a great interest in theatre and musicals. He befriends Jim, Maya & Tim when Paula begins to be mean to him, but then reveals it was only an act.
West Covina's graveyard security guard. He once bribed Paula into going on a date with him. In Season 4, it is implied that he's possibly a murderer.
David
Played by Doug Mand
Audra Levine's hedge fund manager fiancée, later husband. Rebecca once had sex with him over winter holidays in college. Since then she has commented how tiny his penis is, and has called him a "rotten lay".
Estella
Played by Debra Cardona
Hector's doting mother.
Introduced in season three
Dr. Davit Akopian
Played by Piter Marek
Dr. Akopian's husband, and Darryl and White Josh's relationship counsellor. In season 4 he starts consulting Josh after he starts to think that he is mentally sick. Josh calls him "Dr. Man Akopian" to differentiate him from his wife and colleague, Noelle.
Nathaniel's friend from Stanford Law, who met in a gay bar and began a relationship soon after. Throughout their whole relationship, Nathaniel sleeps with Rebecca and cheats on her. After Rebecca breaks it off, Nathaniel asks Mona to move in with her. Nathaniel ultimately breaks up with her in the season three finale to help Rebecca.
Dr. Daniel Shin
Played by Jay Hayden
Rebecca's support group worker and inpatient therapist, who diagnoses her with Borderline Personality Disorder.
Lana
Played by Arden Belle
A member of Rebecca's outpatient BPD therapy group. Lana is shown to have trouble expressing emotions.
Clarice
Played by Carrie Clifford
A member of Rebecca's outpatient BPD therapy group.
Rick
Played by Craig Gellis
A member of Rebecca's outpatient BPD therapy group.
Valencia's business partner and fiancee, first seen just before the season three time jump.
Hebecca Whitefeather
Played by uncredited baby actors
Darryl's daughter, born in the season three finale.
Introduced in season four
Fabulous Girl
Played by Siri Miller
The young woman riding the bicycle in the season 4 opening titles segment. Her name is supposed to be Rebecca, but in her first appearance, it is mentioned that her name is really Deborah.
Darryl's new love interest. Their relationship is initially threatened as their respective offspring are arch enemies. They eventually end up together, with the two having a baby together.
One of the senior partners at Paula's new law firm.
Hanifa Downey
Played by Kalea Mcneill
One of Rebecca's fellow prisoners at the women's county jail, she who is in prison for shoplifting. She and Paula end up forming a special bond as pro bono client and legal counsel.
Dr. Phil appears in season one as a figment of Rebecca's hallucinations, and then once again in season three when Rebecca asks him for money.
Anna Hicks
Played by Brittany Snow
Josh's girlfriend for part of season two. Rebecca and Valencia stalk her for days on end and run over her cat as a result. She thinks Rebecca and Valencia are called Madge and Allegra, and breaks up with Josh after watching him walk a catwalk in a designer club, which leads him to run to Rebecca.
Robert Donnelly
Played by Adam Kaufman
Rebecca's ex-professor and ex-fiancée, from Harvard. She burns his house down in a fit of rage after he dumps her.
Aunt Myrna
Played by Lea Salonga
Josh's Aunt from the Philippines. She performs at Jayma's wedding, which is attended by Josh and Valencia, and separately Rebecca and Greg.
Rabbi Shari
Played by Patti LuPone
Rebecca's rabbi, and Naomi's friend, from Scarsdale. She performs Rebecca's cousin's bat mitzvah, which Josh and Rebecca attend.
Patrick
Played by Seth Green
West Covina's delivery guy, who Rebecca has to deliver multiple wedding dresses to her for the wedding. Rebecca pushes her problems onto him.
Cornelia Wigfield
Played by Bayne Gibby
A lawyer, who replaces Rebecca at Whitefeather, shortly before her suicide attempt. Darryl, Jim & Maya project their feelings about Rebecca onto her.
