Evan Dunsky Creator, Executive Producer Liz Brixius Creator, Executive Producer Linda Wallem Creator, Executive Producer Edie Falco Jackie Peyton Actor Eve Best Dr. O'Hara Actor Peter Facinelli Dr. Cooper Actor Merritt Wever Zoey Actor Haaz Sleiman Mo-Mo Actor Paul Schulze Eddie Actor Anna Deavere Smith Gloria Akalitus Actor Dominic Fumusa Kevin Peyton Actor Ruby Jerins Grace Peyton Actor Mackenzie Aladjem Fiona Peyton Actor Stephen Wallem Thor Lundgren Actor Bill Sage Bill Guest Star Allison Case Lexie Guest Star Jeffrey Ware Methadone Addict Guest Star Ashley Springer George Guest Star Paul Feig Director Rick Cleveland Writer Mark Hudis Executive Producer Richie Jackson Executive Producer Caryn Mandabach Executive Producer Christine Zander Executive Producer