Trey Parker will Despicable Me 3 Full voice the villain in Despicable Me 3.The Despicable Me threequel arrives in theaters next June, and at Universal’s CinemaCon presentation on Wednesday, animation studio Illumination announced a couple of key roles in the new film. Steve Carell will do double duty in the third film, voicing both longtime pro-antagonist Gru and Gru’s long-lost twin brother, Dru, who is exactly like Gru except with hair, and also...