▁the ▁voice ▁of ▁Wal do , ▁the ▁video ' s ▁protagon ist . ▁Wal do , ▁an ▁awk ward ▁boy ▁with ▁large ▁glass es ▁and ▁a ▁bow ▁tie , ▁is ▁put ▁on ▁the ▁school ▁bus ▁by ▁his ▁over - prote ct ive ▁mother . ▁He ▁is ▁ter r ified ▁by ▁the ▁un r uly ▁k ids ▁on ▁the ▁bus ; ▁the ▁driver ▁played ▁by ▁Roth , ▁ ▁tells ▁him ▁" s idd own , ▁Wal do !" ▁as ▁the ▁opening ▁r iff ▁begins . ▁Al ong ▁with ▁Wal do , ▁the ▁" k id ▁versions " ▁of ▁Van ▁Hal en ▁face ▁the ▁tri als ▁and ▁trib ulations ▁of ▁grade ▁school . ▁Two ▁models ▁appear ▁as ▁teachers ▁in ▁the ▁video , ▁Don na ▁Ru pert ▁( runner ▁up ▁in ▁the ▁ 1 9 8 1 ▁Miss ▁Canada ▁page ant ), ▁who ▁plays ▁the ▁chem istry ▁teacher , ▁and ▁L ill ian ▁Müller , ▁who ▁plays ▁the ▁Phys ▁Ed ▁teacher . ▁Both ▁teachers ▁te ar ▁off ▁their ▁dress es ▁to ▁reve al ▁a ▁b ik ini , ▁to ▁the ▁che ers ▁of ▁the ▁students . ▁At ▁the ▁end ▁of ▁the ▁video , ▁the ▁k ids ▁are ▁shown ▁to ▁have ▁grown ▁up ▁to ▁become ▁a ▁gy ne colog ist ▁( Alex ▁Van ▁Hal en ), ▁a ▁sum o ▁wrest ler ▁( Michael ▁Anthony ), ▁a ▁psych iat ric ▁hospital ▁patient ▁( E dd ie ▁Van ▁Hal en ), ▁and ▁a ▁game ▁show ▁host ▁( R oth ). ▁While ▁it ▁is ▁said ▁that ▁no ▁one ▁was ▁sure