Directed by
| Robert Scheerer | ||
Writing Credits (in alphabetical order)
| Luther Davis | ... | (adaptation) |
| Joseph Kesselring | ... | (play) |
Cast (in credits order)
| Helen Hayes | ... | Abby Brewster | |
| Bob Crane | ... | Mortimer Brewster (as Robert Crane) | |
| Lillian Gish | ... | Martha Brewster | |
| Fred Gwynne | ... | Jonathan Brewster | |
| Sue Lyon | ... | Elaine Harper | |
| Bob Dishy | ... | Cop | |
| Jack Gilford | ... | Dr. Jonas Salk | |
| David Wayne | ... | Teddy Brewster | |
| Billy De Wolfe | ... | Officer O'Hara | |
 |
Bernard West | ||
| Frank Campanella | |||
| Victor Kilian | |||
|
|
Lloyd Hubbard | ||
| Bill Smillie | |||
|
|
The Two-Dollar Bill | ... | Music Combo |
| Rest of cast listed alphabetically: | |||
| Richard Deacon | ... | Mr. Witherspoon (uncredited) | |
Produced by
| Luther Davis | ... | producer |
| Willard Levitas | ... | associate producer |
| Hubbell Robinson | ... | executive producer |
Music by
| Norman Paris | ||
Art Direction by
| Tom H. John | ... | (as Tom John) |
Costume Design by
| Al Lehman | ||
Makeup Department
| Dick Smith | ... | makeup artist |
Production Management
| Therese Lewis | ... | production executive |
Second Unit Director or Assistant Director
| Gertrude Tipper | ... | associate director |
Sound Department
| Ed Blainey | ... | sound effects |
| Jack Kelly | ... | audio |
| Les Scheyer | ... | audio |
Camera and Electrical Department
| Andy Balint | ... | video (as Andrej Balint) |
| Joe Herbst | ... | video (as Joseph Herbst) |
| Everett Melosh | ... | lighting director |
Editorial Department
| Nick Mazur | ... | videotape editor |
| Charles Stephensen | ... | videotape editor (as Charles Stephenson) |
Music Department
| Norman Paris | ... | conductor |
Additional Crew
| Russel Crouse | ... | producer: stage play |
| Howard Lindsay | ... | producer: stage play |
| Lou Marchand | ... | technical director |
| Charlotte Weil | ... | production coordinator |
