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