Hugo Weaving

Vincent

Brian Cox

Irving

Jack Davenport

Bobby

Judy Greer

Karen

Ben Shenkman

Martin

Joshua Rush

Actor (uncredited)

Brooke Bloom

Cheryl

Seamus Davey-Fitzpatrick

Sam

Richard Fullerton

Homeowner

James Marshall Case

Shelly Fleisch

Burgess Jenkins

Charles Hawthorne

Carol Kane

Marsha

Josh Pais

Dr. Abraham Meyer

Lee Wilkof

Jackie Fien