Directed by Bruce Bilson   Written by Michael Jacobs   Bob Young   Dava Savel   Jim Henson   Cast Jason Alexander ... Grown Baby (voice) Bill Barretta ... Earl Sinclair Rickey Boyd ... Additional Dinosaur Performer Julianne Buescher ... Monica Devertebrae / Leeza / Sally Kevin Clash ... Baby Sinclair (voice) Elizabeth Collins ... Leeza (voice) Tom Fisher ... Additional Dinosaur Performer David Greenaway ... Mr. Myman John Kennedy ... Baby Sinclair Bruce Lanoil ... Charlene Sinclair / Grown Baby Pons Maar ... Additional Dinosaur Performer Michael McKean ... Mr. Myman (voice) Sam McMurray ... John (voice) Stuart Pankin ... Earl Sinclair (voice) Suzie Plakson ... Monica Devertebrae / Sally (voice) Tony Sabin Prince ... Fran Sinclair Sally Struthers ... Charlene Sinclair (voice) Jack Tate ... Grown Baby Leif Tilden ... Robbie Sinclair / Mr. Myman Star Townsend ... Charlene Sinclair / Sally (as Star Townshend) Allan Trautman ... Fran Sinclair / John Jessica Walter ... Fran Sinclair (voice) Steve Whitmire ... Robbie Sinclair Jason Willinger ... Robbie Sinclair (voice) Mak Wilson ... Earl Sinclair Produced by Mark Brull   Michael Jacobs   Jeff McCracken   Original Music by Ray Colcord

Additional Info Premiere: February 05, 1993 DVD Release: May 01, 2007 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 #3,503 / 21,119 Site Ranking