| Person | Type | Job | Role(s) |
|---|---|---|---|
 Kazuyoshi Okuyama | Crew | Production | Executive Producer |
 Kenji Terada | Crew | Writing | Screenplay |
 Masami Hata | Crew | Directing | Director |
Minoru Nishida | Crew | Art | Background Designer |
 Tetsuya Komuro | Crew | Sound | Music Supervisor, Lyricist |
Naoto Kine | Crew | Sound | Original Music Composer |
Hideki Imaizumi | Crew | Camera | Director of Photography |
Marc Panther | Crew | Writing | Lyricist |
Shunji Yoshida | Crew | Visual Effects | Animation Director |
Yutaka Arai | Crew | Visual Effects | Supervising Animation Director |
 Shūichi Seki | Crew | Visual Effects | Character Designer |
Ruth Stiles Gannett | Crew | Writing | Novel |
YU-KI | Crew | Sound | Theme Song Performance |
Takashi Utsunomiya | Crew | Sound | Theme Song Performance |
Masatoshi Sakai | Crew | Production | Executive Producer |
Ruth Chrisman Gannett | Crew | Writing | Novel |
 Daisuke Gori | Cast | Actor | Male Gorilla (voice) |
 Hiroko Emori | Cast | Actress | Female Gorilla (voice) |
 Junichi Sugawara | Cast | Actor | Rachel (voice) |
 Joji Yanami | Cast | Actor | Cat (Voice) |
 Katsuhisa Namase | Cast | Actor | Lion (voice) |
 Masahiro Takashima | Cast | Actor | Elmer's Father (voice) |
 Masako Nozawa | Cast | Actress | Nearsighted Rat (voice) |
 Megumi Hayashibara | Cast | Actress | Boris (voice) |
 Naoki Tatsuta | Cast | Actor | Seagull (voice) |
 Sumiko Sakamoto | Cast | Actress | Lioness (voice) |
 Takumi Yamazaki | Cast | Actor | Roberta (voice) |
 Yusaku Yara | Cast | Actor | Rhino (voice) |
 Makiko Ohmoto | Cast | Actress | Lucy (voice) |
 Maiko Kikuchi | Cast | Actress | Elmer's Mother (voice) |
 Chiaki Fujimoto | Cast | Actress | Rōjī (voice) |
YU-KI | Cast | Actress | Elmer Elevator (voice) |
| Person | Type | Job | Role(s) |
