Thumbsucker— Full Cast

Lou Taylor Pucci

as Justin Cobb

Andrew Lawrence

as TJ Detweiler (voice)

Tilda Swinton

as Audrey Cobb

Vincent D'Onofrio

as Mike Cobb

Rickey D'Shon Collins

as Vince LaSalle (voice)

Keanu Reeves

as Perry

Pamela Adlon

as Ashley Spinelli (voice)

Benjamin Bratt

as Matt Schramm

Ashley Johnson

as Gretchen Grundler (voice)

Kelli Garner

as Rebecca

Jason Davis

as Mikey Blumberg (voice)

Courtland Mead

as Gus Griswald (voice)

Chase Offerle

as Joel Cobb

Vince Vaughn

as Mr. Geary

Bob Stephenson

as Debate Official

Nancy O'Dell

as Self

Dakota Goldhor

as Girl on Plane

Eric Normington

as Hotel Desk Clerk