Singing Detective, The (2003) - Cast

Robert Downey Jr. as Dan Dark
Robin Wright Penn as Nicola/Nina/Blonde
Mel Gibson as Dr. Gibbon
Jeremy Northam as Mark Binney
Katie Holmes as Nurse Mills
Adrien Brody as First Hood
Jon Polito as Second Hood
Carla Gugino as Betty Dark/Hooker
Saul Rubinek as Skin Specialist
Alfre Woodard as Chief of Staff
Leonard Crofoot as Dancer
Kiva Dawson as Vargas Girl
Don Fischer as Intern
Gordon Hart as Dancer
Bryan Law as Dark's band mate
DeAnna Steele as Dancer
Andy Umberger as Mr. Dark
Jessica Vallot as Vargas Girl
Spice Williams as Dancing Nurse