| Chevy Chase | Clark Griswold |
| Beverly D'Angelo | Ellen Griswold |
| Jason Lively | Rusty Griswald |
| Dana Hill | Audrey Griswald |
| Eric Idle | Bike rider |
| Victor Lanoux | Thief |
| Ballard Barclay | 2nd English Motorist |
| Kevin Kendall | Froegers' Daughter |
| Trisha Long | Game Show Hostess No. 2 |
| Isabelle Massard | Brunette Girl at Eiffel Tower |
| William Millowitsch | Fritz Spritz |
| Claudia Neideg | Rusty's German Girl, Claudia |
| Mel Smith | Hotel Manager |
| Phillipe Stubelle | Cafe Waiter |
| John Astin | Kent, "Pig in a Poke" host |
| Sheila Kennedy | Game Show Hostess No. 1 |
| Paul Bartel | Mr. Foeger |
| Cynthia Szigeti | Mrs. Foeger |
| Malcom Danare | Froegers' Son |
| William Zabka | Jack |
| Wendy Goldman | London Stewardess |
| Angus MacKay | Announcer at Court |
| Julie Wooldridge | Princess Di |
| Peter Hugo | Prince Charles |
| Jeannette Charles | Elizabeth II |
| Derek Deadman | Taxi Driver |
| Gwen Nelson | Hotel Manager's Mother |
| Robbie Coltrane | Man in the Bathroom |
| Maureen Lipman | Lady in the Bed |
| Paul McDowell | 1st English Motorist |
| Elizabeth Arlen | Mrs. Garland |
| David Gersh | Mr. Garland |
| Jacques Herlin | Hotel Desk Clerk |
| Jacques Maury | Hotel's Assistant Manager |
| Alice Sapritch | Dowager on the Eiffel Tower |
| Isa Carol Horio | Blonde Girl at Eiffel Tower |
| Sylvie Badalati | Rusty's French Girl, Cherie |
| Didier Pain | Video Camera Thief |
| Erika Wackernagel | Helga Spritz |
| Massimo Sarchielli | Other Thief |
| Jorge Krimer | Unfortunate Express Agent |
| Gloria Charles | Stewardess |
| Moon Zappa | Rusty's California Girl |
Technical Credits
| Amy Heckerling | Director |
| John Bettis | Songwriter |
| Terry Brock | Songwriter |
| Robert Cartwright | Production Designer |
| Lloyd Chiate | Songwriter |
| Stuart Cornfeld | Producer |
| Marion Dougherty | Casting |
| Nicholas Forder | Makeup |
| Charles Fox | Score Composer,Musical Direction/Supervision |
| Danny Gould | Songwriter |
| Pembroke J. Herring | Editor |
| John Hughes | Original Story,Producer,Screenwriter |
| Robert Klane | Screenwriter |
| Gillian Lynne | Choreography |
| John T. Nelson | Songwriter |
| Jim Odom | Songwriter |
| Robert Paynter | Cinematographer |
| Richard Richtsfeld | Special Effects |
| Matty Simmons | Producer |
| Alan Tomkins | Art Director |
| Leslie Tomkins | Art Director |
| Simon Wakefield | Set Decoration/Design |
| Graham Williams | Costumes/Costume Designer |
