: 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
: Voiced by Seth Rogen . A gelatinous, brainless, and indestructible blue mass [10, 30]. Monsters V Aliens Cast
: 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 Paul Rudd