▁The ▁Cart oon st itute . ▁ ▁Springer ▁gained ▁not or iety ▁through ▁his ▁efforts ▁as ▁a ▁writer ▁and ▁story board ▁artist ▁on ▁various ▁mov ies ▁and ▁television ▁series . ▁His ▁notable ▁efforts ▁include ▁Sam ur ai ▁Jack ▁( 2 0 0 2 – 2 0 0 3 ), ▁D ex ter ' s ▁Labor atory ▁( 2 0 0 3 ), ▁The ▁Gr im ▁Advent ures ▁of ▁Billy ▁& ▁M andy ▁( 2 0 0 5 – 2 0 0 7 ) ▁and ▁S pon ge Bob ▁Square P ants ▁( 1 9 9 9 – 2 0 1 2 ). ▁More ▁recently , ▁he ▁has ▁contributed ▁to ▁Gra vity ▁F alls ▁( 2 0 1 2 – 2 0 1 3 ), ▁W ander ▁Over ▁Y onder ▁( 2 0 1 4 ) ▁and ▁the ▁Mic key ▁Mouse ▁( 2 0 1 3 – 2 0 1 5 ) ▁television ▁series . ▁ ▁Springer ▁created ▁Billy ▁D ille y ' s ▁Super - D uper ▁Sub ter rane an ▁Summer ▁for ▁Disney ▁X D , ▁where ▁he ▁voices ▁the ▁main ▁character , ▁Billy ▁D ille y . ▁The ▁show ▁was ▁first ▁announced ▁in ▁ 2 0 1 4 ▁as ▁a ▁potential ▁pilot . ▁In ▁March ▁ 2 0 1 6 , ▁it ▁was ▁confirmed ▁that ▁Disney ▁X D ▁has ▁green lit ▁the ▁show ▁for ▁a ▁full ▁series , ▁and ▁it ▁officially ▁premier ed ▁on ▁June ▁ 3 , ▁ 2 0 1 7 . ▁As ▁of ▁ 2 0 1 9