| Jim Henson | ... Kermit the Frog, etc. (voice) |
| Frank Oz | ... Miss Piggy, etc. (voice) |
| Dave Goelz | ... Gonzo, etc. (voice) |
| Steve Whitmire | ... Rizzo the Rat, etc. (voice) |
| Richard Hunt | ... Scooter, etc. (voice) |
| Jerry Nelson | ... Camilla, etc. (voice) |
| Juliana Donald | ... Jenny |
| Lonny Price | ... Ronnie |
| Louis Zorich | ... Pete |
|
| Cameo Guest Star |
| Art Carney | ... Cameo Guest Star |
| James Coco | ... Cameo Guest Star |
| Dabney Coleman | ... Cameo Guest Star |
| Gregory Hines | ... Cameo Guest Star |
| Linda Lavin | ... Cameo Guest Star |
| Joan Rivers | ... Cameo Guest Star |
|
| Surprise Cameos |
| Elliott Gould | ... Surprise Cameo |
| Liza Minnelli | ... Surprise Cameo |
| Brooke Shields | ... Surprise Cameo |
| Frances Bergen | ... Surprise Cameo |
| Ed Koch | ... Surprise Cameo |
| John Landis | ... Surprise Cameo |
| Vincent Sardi | ... Surprise Cameo |
|
| And Muppet Performers |
| Kathryn Mullen | ... Jill (voice) |
| Karen Prell | ... Yolanda Rat (voice) |
| Brian Muehl | ... Tatooey Rat (voice) |
| Bruce Edward Hall | ... Masterson Rat, etc. (voice) |
|
| Additional Muppet Performers |
| James J. Kroupa | ... Additional Muppet Performer (voice) |
| David Rudman | ... Additional Muppet Performer (voice) |
| Melissa Whitmire | ... Additional Muppet Performer (voice) |
| Michael Earl Davis | ... Additional Muppet Performer (voice) |
| Glenngo King | ... Additional Muppet Performer (voice) |
| Tim De Haas | ... Additional Muppet Performer (voice) |
| Cheryl Bartholow | ... Additional Muppet Performer (voice) |
| Martin P. Robinson | ... Additional Muppet Performer (voice) |
|
| In order of appearance |
| Steve Burnett | ... College Student |
| Mary Lou Harris | ... College Student |
| Gates McFadden | ... Mr. Price's Secretary |
| Joanne Hamlin | ... Woman in Price's Office |
| Hector Troy | ... First Cop |
| Norman Bush | ... Second Cop |
| Nancy Kirsch | ... Screaming Woman |
| Alice Spivak | ... Customer in Pete's |
| John Eric Bentley | ... Train Conductor (as John Bentley) |
| Dorothy Baxter | ... Elevator Passenger |
| Stephen Sherrard Hicks | ... Elevator Passenger |
| Susan Miller-Kovens | ... Elevator Passenger |
| John Maguire | ... Elevator passenger |
| Sinead Maguire | ... Elevator Passenger |
| Trisha Noel | ... Elevator Passenger |
| Ron Foster | ... Man in Winesop's Office |
| Michael Hirsch | ... Man in Winesop's office |
| Vic Polizos | ... Construction Worker |
| Kenneth McGregor | ... Construction Worker (as Kenneth MacGregor) |
| Chet Washington | ... Construction Worker |
| Graham Brown | ... Mr. Wrightson |
| James Bryson | ... Customer in Pete's |
| Chico Kasindir | ... Customer in Pete's |
| Viola Borden | ... Bingo Caller |
| Paul Stolarsky | ... Aquacade Announcer |
| Maree Dow | ... Woman in the Bleachers |
| Don Quigley | ... Man in the Bleachers |
| Michael Connolly | ... Maitre d' at Sardi's |
| Wade Barnes | ... Customer at Sardi's |
| Ruth Button | ... Customer at Sardi's |
| Lee-Ann Carr | ... Customer at Sardi's |
| Richard Dubois | ... Customer at Sardi's |
| Diana Hayes | ... Customer at Sardi's |
| Jane Hunt | ... Customer at Sardi's |
| Jaqueline Page | ... Customer at Sardi's |
| Harriet Rawlings | ... Customer at Sardi's |
| Milton Seaman | ... Customer at Sardi's |
| Gary Tacon | ... Thief in Central Park |
| Joe Jamrog | ... Cop in Central Park |
| Mark Marrone | ... Chauffeur |
| Cyril Jenkins | ... The Minister |
