Monsters V Aliens: Cast

: 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

The (2009) film features an ensemble of notable actors including Reese Witherspoon , Seth Rogen , and Hugh Laurie . Lead Monster Cast

: Voiced by Reese Witherspoon . Susan is a young woman who grows to over 50 feet tall after being struck by a meteorite [10, 32]. Monsters V Aliens Cast

: Voiced by Renée Zellweger and John Krasinski , respectively. They play a couple whose date is interrupted by an alien landing [10, 37].

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

: 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 Seth Rogen . A gelatinous, brainless, and indestructible blue mass [10, 30]. News Reporter : Voiced by Ed Helms [1, 13]

: Voiced by Will Arnett . A 20,000-year-old "fish-ape" humanoid who was thawed out by scientists [10, 32].