Donnie goes missing and the rest of the Thornberry family have various adventures (broken bones, getting lost in a cave, and a forest fire) while looking for him. It has been screened as a TV movie and as four episodes in season 4 of the TV series.
Lacey Chabert
Jodi Carlisle
Tim Curry
Flea
Danielle Harris
Tom Kane
Betty White
Alan Henry Brown
Arthur Burghardt
Cara DeLizia
Moira Quirk
Dwight Schultz
Tuan Tran
Alfre Woodard
Dee Bradley Baker
Patti Deutsch
Clyde Kusatsu
David Paymer
Maureen Quinn
Pamela Adlon
Jusak Bernhard
Denny Chandra
Tania Gunadi
Malik Nasution
Benny Tjandra
Earl Boen
Leila Kenzle
Candi Milo
Pat Musick
Julia Nickson
Amy Hill
Michael Moertl