| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur Rankin, Jr. | Crew | Directing | Director, Producer |
 Hiroshi Tabata | Crew | Production | Production Supervisor |
 Jules Bass | Crew | Directing | Director, Producer, Lyricist |
Lee Dannacher | Crew | Production | Associate Producer |
Masaki Îzuka | Crew | Production | Associate Producer |
 Maury Laws | Crew | Sound | Music |
Paul Coker Jr. | Crew | Art | Production Design |
 Romeo Muller | Crew | Writing | Writer |
Akikazu Kono | Crew | Production | Production Supervisor |
John Curcio | Crew | Sound | Sound Recordist |
Bob Elder | Crew | Sound | Sound Recordist |
Ichirô Komuro | Crew | Production | Production Supervisor |
 Art Carney | Cast | Actor | Narrator / Blarney Kilakilarney (voice) |
 Bob McFadden | Cast | Actor | Lord of the Leprechauns (voice) |
Ken Jennings | Cast | Actor | Dinty Doyle / Father Leprechaun (voice) |
 Peggy Cass | Cast | Actress | Faye (voice) |
Gerry Matthews | Cast | (voice) | |
Frankie Moronski | Cast | Actor | Boy (voice) |
Christine Mitchell | Cast | Old Mag | |
| Person | Type | Job | Role(s) |
