Monsters V Aliens Cast 【Ultimate — How-To】

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

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

For the TV series spin-off , several roles were recast, with Riki Lindhome taking over as Susan and Chris O'Dowd as Dr. Cockroach [8, 11]. : Voiced by Seth Rogen

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