Keith David Willy the Wonker
Jeffrey Wright Thelonious 'Monk' Ellison
Patrick Fischler Mandel
Adam Brody Wiley Valdespino
Sterling K. Brown Clifford Ellison
Erika Alexander Coraline
Tracee Ellis Ross Lisa Ellison
Neal Lerner Wilson Harnet
Issa Rae Sintara Golden
Miriam Shor Paula Baderman
Rian Johnson Executive Producer
John Ortiz Arthur
Okieriete Onaodowan Van Go Jenkins
Lisa Morgan Key Makeup Artist
Galaxy San Juan Makeup Department Head
Leslie Uggams Agnes Ellison
David De Beck Dr. Bulger
Felix Giuffrida First Assistant "B" Camera
J.C. MacKenzie Carl Brunt
John Ales Leo
Jill Sacco Production Supervisor
Jenn Harris Ailene Hoover
Myra Lucretia Taylor Lorraine
Greta Quispe Luz Borquez
Skyler Wright Brittany
Kate Avallone Woman on Patio
Gianna Sparacino Hair Department Head
Michael Cyril Creighton John Bosco
Bates Wilder Jon Daniel Sigmarsen
Giles Harding Visual Effects Supervisor, Visual Effects Producer
Michael Jibrin Jelani
Ashley Lambert ADR Voice Casting
Ram Bergman Executive Producer
Alexander Pobutsky Kenny
Lisa Lobel Local Casting
Raymond Anthony Thomas Maynard
Samantha Gordon Gaby (uncredited)
Sang Kim Supervising Sound Editor
Celeste Oliva Dr. Tiefel
Alex Levy Music Editor
Bruce Wayne Gillies Line Producer
Cord Jefferson Director, Writer, Producer
Laura Karpman Original Music Composer
Nikos Karamigios Producer
Michael Malvesti Plainclothes Cop
John Vincent Mason Stunt Coordinator
Jermaine Johnson Producer
Rudy Mance Costume Design
Ben LeClair Producer
Justin Andrew Phillips Arthur's Intern
Jennifer Euston Casting
Dustin Tucker Phillip
Becki Dennis Clinic Receptionist
Megan Robinson Kenya Dunston
Shadya H. Ballug Set Dresser
Shayne Hartigan Extras Casting
Candace Masterson Key Costumer
Greg Arch "A" Camera Operator, Steadicam Operator
Jonathan Guggenheim Production Design
Alexandra Fehrman Sound Re-Recording Mixer
Julie Hansen Post Production Accountant
Justin Garcia Gaffer
Selena Evans-Miller Key Makeup Artist
Hashim Strange Set Dresser
Lily Raih Property Master
Claire Folger Still Photographer
Mattie Hamer Digital Imaging Technician
Jim Otero Transportation Captain
Tina Ulee Costume Supervisor
Michele Proude Bulger's Nurse
Chhoyang Cheshatsang Wiley's Assistant
Katherine Castro "B" Camera Operator