The Tenth Level (1976) — Cast
Cast
| Roy Poole | Goodman |
| Richard McKenzie | Dennison |
| Estelle Parsons | Crossland |
| Michael Howard | |
| W.T. Martin | Waiter |
| Jeff Pomerantz | Professor Pacoli |
| Gregory Abels | Military Technician |
| Gary Cookson | Military Technician |
| Lynn Carlin | Barbara Land |
| Stephen Macht | Dahlquist |
| Charles White | Harry |
| Viveca Lindfors | Mrs. Dunn |
| Fred J. Scollay | McBride |
| William Shatner | Stephen |
| Damon Evans | |
| Lindsay Crouse | Karen |
| Billie Lou Watt | Carol |
| Tom Quinn | Bully |
| Ossie Davis | Nate Reed |
| John Travolta | (uncredited) |
| Mike Kellin | Fortunata Mancuso |
| Robert Burr | Deion Hughes |
Crew
| Rowland Vance | Assistant Director |
| Al Rosen | Production Supervisor |
| George Bellak | Associate Producer |
| Leslie Renfield | Costume Design |
| Victor Paganuzzi | Production Design |
| Charles Gross | Original Music Composer |
| Charles S. Dubin | Director |
| Wesley Laws | Set Decoration |
| Neal Schatz | Special Effects |
| Tony Masucci | Producer |
| Bob Markell | Executive Producer |
| Charles Gross | Conductor |
| B.A. Taylor | Sound |
| George Bellak | Writer |