 | John Cleese als Rollo Lee |
 | Jamie Lee Curtis als Willa Weston |
 | Kevin Kline als Vince McCain / Rod McCain |
 | Michael Palin als Adrian 'Bugsy' Malone |
 | Robert Lindsay als Sydney Lotterby |
 | Ronnie Corbett als Reggie Sealions |
 | Carey Lowell als Cub Felines |
 | Bille Brown als Neville Coltrane |
 | Derek Griffiths als Gerry Ungulates |
 | Cynthia Cleese als Pip 'Small Mammals' |
 | Richard Ridings als Hugh Primates |
 | Maria Aitken als Di Admin |
 | Lisa Hogan als Sealion Keeper |
 | Georgia Reece als Sponsor |
 | Jack Davenport als Student Zoo Keeper |
 | Tim Potter als Vulture Keeper |
 | Ron Donachie als Sergeant Scott |
 | Amanda Walker als Zoo Secretary |
 | Paul Haigh als Sergeant Irving |
 | Grahame Wood als Student Zoo Keeper |
 | Tom Georgeson als Sealion Spectator |
 | Jenny Galloway als Aquarium Keeper |
 | Kim Vithana als Tiger Keeper |
 | Julie Saunders als Rodent Keeper |
 | Susie Blake als Woman in Red Dress |
 | Jennie Goossens als Sponsor |
 | Kate Harper als TV Journalist |
 | Kate Alderton als Student Zoo Keeper |
 | Michael Percival als Ant Keeper |
| John Cleese | Screenplay |
| William Goldman | Screenplay |
| Ian Baker | Director of Photography |
| Adrian Biddle | Director of Photography |
| Iain Johnstone | Screenplay |
| Robert Gibson | Editor |
| Steve Abbott | Executive Producer |
| John Cleese | Producer |
| Michael Shamberg | Producer |
| Robert Young | Director |
| Jerry Goldsmith | Original Music Composer |
| Peter Howitt | Set Decoration |
| Andrew Eio | CG Supervisor |
| Julia Duff | Casting Associate |
| John Swinnerton | Compositor |
| Sally Grace | Dialogue Editor |
| Priscilla John | Casting |
| Roger Murray-Leach | Production Design |
| David Allday | Art Direction |
| Hazel Pethig | Costume Design |
| Hilary Haines | Hairstylist |
| Paul Engelen | Key Makeup Artist |
| Callum McDougall | Unit Production Manager |
| Robin Heinson | Painter |
| Kevin McCarthy | Standby Painter |
| Colin Miller | Sound Editor |
| John Allenby | Property Master |
| Patricia Carr | Co-Producer |
| Jonathan Benson | First Assistant Director |
| Gary Tomkins | Assistant Art Director |
| Ray Barrett | Construction Coordinator |
| Adam Dale | Aerial Camera |
| Allan Moss | Sculptor |
| John Ash | Electrician |
| David Appleby | Still Photographer |
| Penny Bell | Makeup Artist |
| Graham V. Hartstone | Sound Re-Recording Mixer |
| Kenneth Hall | Music Editor |
| Brian Blamey | Foley Editor |
| Stephenie McMillan | Set Decoration |
| Jo Burn | Production Coordinator |
| Kevin Costner | Thanks |
| Mike Bleach | Boom Operator |
| Neil Binney | Camera Operator |
| Gill Case | Location Manager |
| Alf Tramontin | Steadicam Operator |
| Simon Harris | First Assistant Editor |
| Terry Jones | Animatronics Designer |
| Joshua Andrews | Stand In |
| Vanessa Davies | Unit Publicist |
| Annie Penn | Script Supervisor |
| Simon Crane | Stunt Coordinator |
| Kevin Phipps | Art Direction |
| Brian Read | Set Decoration |
| David Coley | Carpenter |
| Chris Munro | Sound Mixer |
| John Flemming | Key Grip |
| Maggie Phelan | Production Accountant |
| Kevin Day | Gaffer |
| Stephen Dobric | Draughtsman |
| Mark Foster | Wardrobe Supervisor |
| Kim Norris | Negative Cutter |
| John Eccleston | Assistant Accountant |
| Martin Asbury | Storyboard Artist |
| Pauline Hume | Title Designer |
| Joe Hobbs | Wardrobe Assistant |
| Naomi Conran | Floor Runner |
| Bill Kaye | Additional Still Photographer |
| Ashley Bond | Clapper Loader |
| Martin Eichelberger | Executive Assistant |
| Simon Emanuel | Third Assistant Director |
| Riky Ash | Stunt Double |
| Judy Britten | Assistant Production Coordinator |
| Sally Grace | Dialogue Coach |
| Colin Burgess | Dressing Prop |
| Carol Eastwood | Construction Buyer |
| Jerry Goldsmith | Conductor |
| Andrew McEwan | Production Assistant |
| Tim Dodd | Focus Puller |
| Martin Bloye | Generator Operator |
| Rab Wilson | Assistant Editor |
| Antony Ford | Second Assistant Director |
| Sandy Buchanan | ADR Mixer |
| Martin Body | Digital Compositor |
| Max Hoskins | ADR Editor |
| Fred Schepisi | Co-Director |
| Fraser Taggart | Focus Puller |
| Greg Powell | Stunt Coordinator |
| Scott Bates | Production Runner |
