Monsters V Aliens Cast ✔ 〈ORIGINAL〉

: A massive mutated larva. The character's vocal effects were provided by the film's co-director, Conrad Vernon [10, 20]. Human and Alien Characters

: Voiced by Hugh Laurie . A brilliant mad scientist who accidentally gave himself the head and abilities of a cockroach [10, 36]. Monsters V Aliens Cast

: Voiced by Seth Rogen . A gelatinous, brainless, and indestructible blue mass [10, 30]. : A massive mutated larva

: Voiced by Paul Rudd . Susan’s self-absorbed fiancé and local weatherman [10, 32]. Gallaxhar's Computer : Voiced by Amy Poehler [1, 10]. News Reporter : Voiced by Ed Helms [1, 13]. Additional Voices A brilliant mad scientist who accidentally gave himself

: Susan's parents are voiced by Jeffrey Tambor and Julie White [10, 13].

: Voiced by Rainn Wilson . The main antagonist, an evil alien overlord seeking the "quantonium" inside Susan [10, 32].

: Voiced by Stephen Colbert . The impulsive and dimwitted President of the United States [10, 25].