Directed by Tom Trbovich Written by Michael Jacobs   Bob Young   Dava Savel   Jim Henson   Cast Mak Wilson ... Earl Sinclair Bill Barretta ... Earl Sinclair Stuart Pankin ... Earl Sinclair (voice) Allan Trautman ... Fran Sinclair / Louie Tony Sabin Prince ... Fran Sinclair Jessica Walter ... Fran Sinclair (voice) Steve Whitmire ... Robbie Sinclair Leif Tilden ... Robbie Sinclair Jason Willinger ... Robbie Sinclair Bruce Lanoil ... Charlene Sinclair Michelan Sisti ... Charlene Sinclair Sally Struthers ... Charlene Sinclair (voice) David Greenaway ... Roy Hess / Lucius Pons Maar ... Roy Hess Sam McMurray ... Roy Hess (voice) Brian Henson ... Grandma Ethyl Phillips Florence Stanley ... Grandma Ethyl Phillips Buddy Hackett ... Louie (voice) Jack Tate ... Lucius John Glover ... Lucius (voice) Kevin Clash ... Baby Sinclair (voice) John Kennedy ... Baby Sinclair Julianne Buescher ... Additional Dinosaur Performer Tom Fisher ... Additional Dinosaur Performer Terri Hardin ... Additional Dinosaur Performer Star Townsend ... Additional Dinosaur Performer (as Star Townshend) Produced by Mark Brull   Michael Jacobs   Jeff McCracken   Rob Ulin   Original Music by Ray Colcord

Additional Info Premiere: February 12, 1992 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 #3,484 / 20,886 Site Ranking