El detective cantante: Reparto
Robert Downey Jr.
Dan Dark
Robin Wright
Nicola, Nina, Blonde
Mel Gibson
Dr. Gibbon
Jeremy Northam
Mark Binney
Katie Holmes
Nurse Mills
Adrien Brody
First Hood
Jon Polito
Second Hood
Carla Gugino
Betty Dark / Hooker
Alfre Woodard
Chief of Staff
Amy Aquino
Nurse Nozhki
David Dorfman
Young Dan Dark
Saul Rubinek
Skin Specialist
Andy Umberger
Mr. Dark