Robert Downey, Jr. (Harry Lockhart)
Val Kilmer (Gay Perry)
Michelle Monaghan (Harmony Faith Lane)
Corbin Bernsen (Harlan Dexter)
Dash Mihok (Mr. Frying Pan)
Bill McAdams, Jr. (NY Cop)
Duane Carnahan (Chainsaw Kid)
Ariel Winter (Harmony Age 7)
Indio Falconer Downey (Harry Age 9)
Lela Edgar (Party Girl)
Stephanie Pearson (Teen Harmony)
Brendan Fehily (Local News Reporter)
David Newsome (Agent Type)
Ali Hillis (Marleah)
Bobby Tuttle (Hotel Concierge)
Jake Eberle (Patrol Cop)
Daniel Browning Smith (Rubber Boy)
Teresa Herrera (Newswoman)
Evan Parke (Dexter Clinic Guard)
Saida Rodriguez-Pagan (News Anchor)
Nancy Fish (NY Casting Woman)
Vincent Laresca (Aurello)
Wiley M. Pickett (Homicide Cop)
Josh Richman (Rickie)
Cole McKay (Dexter Goon)
Joe Keyes (Lobby Cop)
Brian Simpson (Dexter Goon)
Harrison Young (Harmony's Dad)
Judie Aronson (Gift Bag Girl)
Kathy Lamkin (Woman in Hospital Blues)
Chrissy Gilman (Protocop)
Ben Bray (Dexter Goon)
Tanja Reichert (B-Movie Actress)
Jake McKinnon (Creature)
Martha Hackett (Pistol Woman)
Larry Miller (Dabney Shaw)
Rockmond Dunbar (Mr. Fire)
Shannyn Sossamon (Pink Hair Girl)
Angela Lindvall (Flicka)