s ▁design ▁was ▁based ▁on ▁Bl uth ' s ▁pet ▁Ch ow ▁Ch ow , ▁Cub by , ▁with ▁the ▁director ▁comment ing ▁that ▁he ▁had ▁a ▁personal ▁fond ness ▁for ▁the ▁character , ▁calling ▁him ▁" a ▁pure ▁soul , ▁simple , ▁accommod ating , ▁and ▁eager ▁to ▁please ." ▁He ▁has ▁been ▁described ▁by ▁journal ists ▁as ▁the ▁" f at ▁kid " ▁of ▁the ▁group , ▁" qu iet ▁and ▁sh y ," ▁and ▁a ▁" tag al ong ." ▁ ▁Ch om per ▁Ch om per , ▁vo iced ▁by ▁Rob ▁Paul sen ▁( II ), ▁C annon ▁Young ▁( V ), ▁ ▁Max ▁Bur k holder ▁( TV ▁series ), ▁and ▁Iss ac ▁Ryan ▁Brown ▁( X IV ) ▁is ▁a ▁male ▁pur ple ▁" Sh ar pt ooth ". ▁He ▁first ▁appeared ▁in ▁the ▁second ▁film , ▁The ▁Great ▁Valley ▁Advent ure , ▁as ▁a ▁new born ▁h atch ling ▁whom ▁Little foot ▁and ▁the ▁others ▁attempt ▁to ▁raise ▁before ▁returning ▁him ▁to ▁his ▁parents . ▁He ▁re - app eared ▁as ▁a ▁supporting ▁character ▁in ▁the ▁fifth ▁movie ▁The ▁Myst er ious ▁Island , ▁in ▁which ▁he ▁is ▁now ▁able ▁to ▁speak ▁the ▁language ▁of ▁both ▁Sh arp te eth ▁and ▁leaf - e aters , ▁but ▁must ▁conv ince ▁his ▁parents ▁and ▁C era ▁that ▁both ▁groups ▁can ▁get ▁along . ▁He ▁became ▁a ▁main ▁character ▁in ▁the ▁TV ▁series , ▁having ▁migr ated ▁to ▁the ▁Great ▁Valley ▁under ▁the ▁care ▁of ▁Ruby , ▁and