Bros. 3 and Super Mario World as Hip/Lemmy and Hop/Iggy Koopa; Foster's Home for Imaginary Friends as Terrence ; Transformers Animated as Sari Sumdac , Slipstream , Slo-Mo, Strika, Red Alert, Mayor Edsel's press secretary, and additional voices; Sym-Bionic Titan as Ilana Lunas; Chowder as Truffles ; the singing voice of