Directed by
| Robert Douglas | ||
Writing Credits (in alphabetical order)
| Paul Schneider | ... | (written by) |
Cast (in credits order)
| Efrem Zimbalist Jr. | ... | Inspector Lewis Erskine | |
| Philip Abbott | ... | Arthur Ward | |
| William Reynolds | ... | Special Agent Tom Colby | |
| Barry Morse | ... | Glen Parmenter | |
| Victoria Shaw | ... | Elaine Ross | |
| Donald Harron | ... | Edward Boland | |
| Marie Windsor | ... | Grace | |
| Robert Cornthwaite | ... | Fielder | |
| David Frankham | ... | George Hammond | |
 |
Logan Field | ... | Dr. Farrell |
| Tol Avery | ... | Lloyd Talbot | |
|
|
Dallas Mitchell | ... | Special Agent Lawrence |
| Byron Keith | ... | Detective | |
| Rest of cast listed alphabetically: | |||
| Marvin Miller | ... | Narrator (voice) (uncredited) | |
Produced by
| Charles Larson | ... | producer |
| Quinn Martin | ... | executive producer |
| Adrian Samish | ... | supervising producer |
| Mark Weingart | ... | associate producer |
Music by
| Duane Tatro | ||
Cinematography by
| William W. Spencer | ||
Editing by
| Jerry Young | ||
Art Direction by
| Richard Y. Haman | ||
Set Decoration by
| Hoyle Barrett | ||
Production Management
| Howard P. Alston | ... | production manager (as Howard Alston) |
| Arthur Fellows | ... | in charge of production |
| Dick Gallegly | ... | unit production manager |
Second Unit Director or Assistant Director
| Paul Wurtzel | ... | assistant director |
Music Department
| Bronislau Kaper | ... | composer: theme music |
Additional Crew
| John Conwell | ... | assistant to executive producer |