Directed by
| Georg Fenady | ||
Writing Credits
| Robert A. Cinader | ... | (created by) (as R.A. Cinader) |
| Eric Brown | ||
Cast (in credits order)
| Jack Hogan | ... | Chief Ranger Jack Moore | |
 |
James G. Richardson | ... | Ranger Tim Cassidy |
| Ernest Thompson | ... | Ranger Matt Harper | |
|
|
Susan Foster | ... | Ranger Julie Beck |
| Michael Warren | ... | Ranger P.J. Lewis | |
| Rest of cast listed alphabetically: | |||
| Frank Aletter | ... | Sam | |
| Christopher Norris | ... | Tammy | |
| Gavan O'Herlihy | ... | Roy | |
|
|
Karen Obediear | ... | Jessica Andrews |
| Evelyn Russell | ... | Sylvia | |
| Carmen Zapata | ... | Mrs. Andrews | |
Produced by
| Jack Webb | ... | executive producer |
Cinematography by
| Bernie Abramson | ||
Editing by
| John Kaufman | ||
Production Management
| Charles Clement | ... | post production operations head (uncredited) |
Music Department
| Denny Brooks | ... | singer: theme music |
| John Denver | ... | lyricist: theme music |
| Lee Holdridge | ... | composer: theme music |
Additional Crew
| Ron Veto | ... | underwater diver |