|Danny Kaye||Jerry Morgan/Papa Morgan/Clarence|
|Mai Zetterling||Dr. Ilse Nordstrom|
|Torin Thatcher||Godfrey Langston|
|David Burns||Marty Brown|
|Leon Askin||Laslo Gromeck|
|Abner Biberman||Maurice Papinek|
When his fiancée leaves him, ventriloquist Jerry Morgan alarms his manager, Marty, with a violent outburst directed at his two dummies. After promising Marty to see a psychiatrist over his behavior, Jerry takes his broken dummies to a shop -- where, unknown to him, the repairman is a spy who plants vital secret blueprints in the wooden dolls. Jerry then becomes the target of several determined spies, as well as a stunning psychiatrist .