Directed by Tom Trbovich Written by Michael Jacobs Bob Young Dave Caplan Brian LaPan Jim Henson Cast Jason Alexander ... Sexual Harris (voice) Bill Barretta ... Earl Sinclair Julianne Buescher ... Monica Devertebrae Kevin Carlson ... Additional Dinosaur Performer Kevin Clash ... Baby Sinclair / Howard Handupme (voice) Tom Fisher ... Additional Dinosaur Performer David Greenaway ... Roy Hess / Grandma Ethyl Phillips Jack L. Harrell ... Mr. Harold Heffer (voice) Sherman Hemsley ... B.P. Richfield (voice) John Kennedy ... Baby Sinclair Bruce Lanoil ... Charlene / Sexual Harris / Harold Heffer David Leisure ... Mr. Teddy Wolfe (voice) Pons Maar ... Roy Hess Sam McMurray ... Roy Hess (voice) James Murray ... Additional Dinosaur Performer Stuart Pankin ... Earl Sinclair (voice) Suzie Plakson ... Monica Devertebrae (voice) Tony Sabin Prince ... Fran Sinclair Michelan Sisti ... Charlene Sinclair Florence Stanley ... Grandma Ethyl Phillips (voice) Sally Struthers ... Charlene Sinclair (voice) Jack Tate ... Sexual Harris Leif Tilden ... Robbie Sinclair Star Townsend ... Additional Dinosaur Performer (as Star Townshend) Allan Trautman ... Fran Sinclair / Mr. Otto Lynch (voice) Jessica Walter ... Fran Sinclair (voice) Steve Whitmire ... Robbie Sinclair / B.P. Richfield / Mr. Mason Dixon (voice) Jason Willinger ... Robbie Sinclair (voice) Mak Wilson ... Earl Sinclair / Mr. Teddy Wolfe Produced by Mark Brull Michael Jacobs Jeff McCracken Rob Ulin Original Music by Ray Colcord

Additional Info Premiere: December 18, 1991 DVD Release: May 02, 2006 Country: Distributor: Buena Vista Home Entertainment Websites: Production Companies Jim Henson Productions Michael Jacobs Productions The Jim Henson Company Walt Disney Television Distributors ABC Signature   (2016) (USA) (DVD) American Broadcasting Company (ABC)   (1991-1994) (USA) (TV) Disney Channel   (1995-2000) (USA) (TV) Disney+   (2021) (USA) (video) (VOD) Disney-ABC Domestic Television   (1991) (USA) (TV) Rating Stats Overall Rating -- / 10 Our Rating -- / 10 Your Friends -- / 10 Male Users -- / 10 Female Users -- / 10 Site Ranking #3,483 / 20,698 Site Ranking