Manic

Joseph Gordon-Levitt

Lyle

Don Cheadle

Dr. David Monroe

Zooey Deschanel

Tracy

Michael Bacall

Chad

Elden Henson

Michael

Cody Lightning

Kenny

Sara Rivas

Sara

William Richert

Diego

Blayne Weaver

Charlie

Maggie Baird

Rebecca

Roxie Fuller

Roxie

Van Epperson

Night Staff

Jamielyn Lippman

Dairy Girl

Paul Greenstone

Mental Patient (uncredited)

Lydell M. Cheshier

J.C.