 | Dudley Moore als Patch |
 | John Lithgow als B.Z. |
 | David Huddleston als Santa Claus |
 | Burgess Meredith als Ancient Elf |
 | Judy Cornwell als Anya Claus |
 | Jeffrey Kramer als Towzer |
 | Christian Fitzpatrick als Joe |
 | Carrie Kei Heim als Cornelia |
 | John Barrard als Dooley |
 | Anthony O'Donnell als Puffy |
 | Melvyn Hayes als Goober |
 | Don Estelle als Groot |
 | Tim Stern als Boog |
 | Christopher Ryan als Vout |
| Peter O'Farrell als Honka |
 | Dickie Arnold als Goobler |
 | Aimée Delamain als Storyteller |
 | Dorothea Phillips als Miss Tucker |
 | John Hallam als Grizzard, Chauffeur |
| Judith Morse als Miss Abruzzi |
| Jerry Harte als Senate Chairman |
| Paul Aspland als Reporter |
| Sally Cranfield als Reporter |
| Michael Drew als Reporter |
| Walter Goodman als Street Corner Santa |
| John Cassady als Wino |
| Ronald Fernee als Policeman |
| Michael A. Ross als Policeman |
 | Shannon Spruill als Bratty Kid at Ballet Class |
 | Morgan Deare als BZ's Lawyer |
 | Caroline John als Woman |
 | Jill Goldston als Photographer In Court (uncredited) |
| Henry Mancini | Original Music Composer |
| Jeannot Szwarc | Director |
| Ilya Salkind | Producer |
| David Newman | Screenplay |
| Pierre Spengler | Producer |
| Anthony Pratt | Production Design |
| Leslie Newman | Story |
| Stephenie McMillan | Set Decoration |
| Anne Henderson | Casting |
| Pamela Carlton | Script Supervisor |
| Arthur Ibbetson | Director of Photography |
| Robert Simmonds | Associate Producer |
| Bob Penn | Still Photographer |
| David Crozier | Sound Mixer |
| Bob Ringwood | Costume Design |
| Peter Hollywood | Editor |
| David Newman | Story |
| Lynn Stalmaster | Casting |
| David Lane | Second Unit Director |
| Pauline Coutelenq | Production Executive |
| John Trehy | Production Accountant |
| Derek Cracknell | First Assistant Director |
| Vincent Winter | Production Supervisor |
| Pat Garrett | Choreographer |
| Don Sharpe | Sound Editor |
| Robert Hathaway | Music Editor |
| Tim Hutchinson | Supervising Art Director |
| Don Dossett | Art Direction |
| John Hoesli | Art Direction |
| Malcolm Stone | Art Direction |
| Wally Byatt | Camera Operator |
| David Worley | Camera Operator |
| Trevor Coop | Camera Operator |
| Jeff Paynter | Camera Operator |
| John Morgan | Camera Operator |
| Chris Coles | Production Manager |
| Paul Engelen | Makeup Artist |
| Stuart Freeborn | Makeup Artist |
| Penny Shawyer | Makeup Artist |
| Colin Jamison | Hairdresser |
| Jan Jamison | Hairdresser |
| Elaine Bowerbank | Hairdresser |
| John Paterson | Construction Manager |
| Eddie Fowlie | Property Master |
| Patrick Wheatley | Wardrobe Master |
| Archie Ludski | Sound Editor |
| Rocky Phelan | Sound Editor |
| Les Healey | Assistant Editor |
| Margaret Thompson | Assistant Editor |
| Beverley Lamb | Assistant Editor |
