Gregory Hines as Mark Jannek / Jim Sheppard

Debrah Farentino as Karen / Laura

Harold Ayer as

Laura Harrington as Susan

Gloria Reuben as Judy

Beau Starr as Lieutenant Marvin Gagglis

Michael Harris as Fred Ridder

Eric Boles as Dr. Stein

Joe Colligan as Ted St. James

Veronica Cartwright as The Caller

W. Earl Brown as Ken

John Hawkes as Morton

Ron Recasner as Dr. Reinhart

Milt Tarver as Orr

Steve Jackson Wilde as Kyle Dean

Linda Wang as Cindy