While investigating a murder in a theater, Detective Krovitch uncovers a strange web of tensions revolving around ventriloquist John Fabian and his female dummy.
| Name | Type | Role | |
|---|---|---|---|
| Mel Dinelli | Writer | ||
| Ray Bradbury | Writer | ||
| Charles Bronson | Guest Star | ||
| Charles Cantor | Guest Star | ||
| Claire Carleton | Guest Star | ||
| Iris Adrian | Guest Star | ||
| Lowell Gilmore | Guest Star | ||
| William Haade | Guest Star | ||
| Harry Tyler | Guest Star | ||
| Claude Rains | Guest Star | ||
| Virginia Gregg | Guest Star | ||
| Robert Stevenson | Director |