Trailer
 | Jeannie Carson as Heidi |
 | Natalie Wood as Klara Sesseman |
 | Richard Eastham as Grandfather |
 | Jo Van Fleet as Aunt Dete |
 | Wally Cox as Peter |
 | Robert Clary as Eric Highlights |
 | Elsa Lanchester as Fräulein Rottenmeier |
 | Bil Baird as Puppets |
| Cora Baird as Puppets |
| Claire Chatwin as Second Maid |
 | Philip Faversham as Pastor |
| William Gibberson as Herr Sesseman |
| Lee Goodman as Sebastian |
| Eleanor Williams as Tonette |
| Production | |
| Max Liebman | Producer |
Directing | |
| Max Liebman | Director |
Writing | |
| Johanna Spyri | Novel |
| Billy Friedberg | Adaptation |
| Neil Simon | Adaptation |
Production | |
| Bill Hobin | Executive Producer |
Sound | |
| Clay Warnick | Songs |
Art | |
| Frederick Fox | Art Direction |
Costume & Make-Up | |
| Paul duPont | Costume Design |
Writing | |
| Carolyn Leigh | Lyricist |
Sound | |
| Robert Schumann | Music |
Crew | |
| James Starbuck | Choreographer |
Sound | |
| Charles Sanford | Music Director |
| Charles Sanford | Conductor |
| Irwin Kostal | Music |
| Mel Pahl | Music |
