A teenage girl, who feels she must always seem happy for her parents and friends, secretly binges and purges.
| Actor | Role |
|---|---|
 Alison LohmanBeth Moss | Beth Moss |
 Mare WinninghamDr. Nina Moss | Dr. Nina Moss |
 Tim MathesonJohn Moss | John Moss |
 Diane LaddNina's Mother | Nina's Mother |
 Mary CrosbyIrene | Irene |
 Lawrence MonosonPhil Paige | Phil Paige |
 Camryn GrimesRachel | Rachel |
 Brighton HertfordSophia | Sophia |
 Kady ColeMelanie | Melanie |
 Julius RitterEdward | Edward |
 Arina GasanovaBallet Teacher | Ballet Teacher |
 Roxana BrussoKerri Gold, Beth's Therapist | Kerri Gold, Beth's Therapist |
 Khadijah KarriemSchool Counselor | School Counselor |
 Dean SheltonGreg | Greg |
 Kathy ChristophersonGail | Gail |
 Ashlynn RoseEmily | Emily |
 Sandy BrownNina's Associate | Nina's Associate |
| KKaela CrawfordBallerina | Ballerina |
 Roma ChuganiMath Teacher | Math Teacher |
| NNhat NguyenDr. Mattee | Dr. Mattee |
 Kylee CochranSitcom Girl #1 | Sitcom Girl #1 |
 Lamya JezekSitcom Girl #2 | Sitcom Girl #2 |