Dudley Moore as Wylie Cooper Eddie Murphy as Lieutenant T.M. Landry Kate Capshaw as Laura Cooper George Dzundza as Steve Loparino Helen Shaver as Clair Lewis Mark Arnott as Harvey Brank Peter Michael Goetz as Frank Joyner Tom Noonan as Frank Holtzman David Rasche as Jeff the KGB Agent Paul Comi as Chief Agent John Hostetter as Quirk, Dynatechincs