Trailer
 | Fred Allen as Fred Allen - Fred Allen Radio Program |
 | Eddie 'Rochester' Anderson as Rochester, Jack Benny Radio Program |
 | Phil Baker as Phil Baker - 'The $64 Question Radio Program' |
 | Jackson Beck as Narrator |
 | Jack Benny as Jack Benny - Jack Benny Radio Program |
 | Edgar Bergen as Edgar Bergen - Edgar Bergen & Charlie McCarthy Radio Program |
 | Kenny Delmar as Senator Claghorn, Fred Allen Radio Program |
 | Parker Fennelly as Titus Moody - Fred Allen Radio Program |
 | Phil Harris as Phil Harris - Jack Benny Radio Program |
| Portland Hoffa as Portland - Fred Allen Radio Program |
 | Bob Hope as Bob Hope - Bob Hope Radio Program |
 | Jim Jordan as Fibber McGee |
 | Marian Jordan as Molly McGee |
 | Edward R. Murrow as Newscaster |
| Carl Sandburg as Carl Sandburg |
| Bill Stern as Bill Stern - Sportscaster |
 | Arturo Toscanini as Arturo Toscanini - Orchestra Conductor |
 | Walter Winchell as Walter Winchell |
| Editing | |
| Morrie Roizman | Editor |
Production | |
| Richard De Rochemont | Producer |
