A Broadway playwright puts murder in his plan to take credit for a student's script.
| Actor | Role |
|---|---|
 Michael CaineSidney Bruhl | Sidney Bruhl |
 Christopher ReeveClifford Anderson | Clifford Anderson |
 Dyan CannonMyra Bruhl | Myra Bruhl |
 Irene WorthHelga ten Dorp | Helga ten Dorp |
 Henry JonesPorter Milgrim | Porter Milgrim |
 Joe SilverSeymour Starger | Seymour Starger |
 Tony DiBenedettoBurt | Burt |
| AAl LeBretonHandsome Actor | Handsome Actor |
| FFrancis B. Creamer Jr.Minister | Minister |
| SStewart KleinStewart Klein | Stewart Klein |
| JJeffrey LyonsJeffrey Lyons | Jeffrey Lyons |
 Joel SiegelJoel Siegel | Joel Siegel |
 Jenny LumetStage Newsboy | Stage Newsboy |
| JJayne HellerStage Actress | Stage Actress |
| GGeorge PeckStage Actor | Stage Actor |
| PPerry RosenStage Actor | Stage Actor |
 Jon-Erik HexumTheater Audience (uncredited) | Theater Audience (uncredited) |