The rats and mice, made intellectually superior in the original Secret of N.I.M.H., return to Thorn Valley to groom their destined leader - young Timmy Brisby.
Ralph Macchio
as 17 Year Old Tim (voice)
Eric Idle
as Evil Martin (voice)
Hynden Walch
as Jenny Mcbride (voice)
Harvey Korman
as Floyd (voice)
Andrea Martin
as Muriel (voice)
William H. Macy
as Justin (voice)
Dom DeLuise
as Jeremy (voice)
Peter MacNicol
as Narrator (voice)
Andrew Ducote
as 10 Year Old Timmy (voice)
Arthur Malet
as Mr. Ages (voice)
Doris Roberts
as Auntie Shrew (voice)
Phillip Van Dyke
as Young Martin (voice)
