Monsters vs. Aliens Voice Over Cast Announced

The upcoming Dreamworks animated feature, Monsters vs. Aliens, has just released its cast information and some pics.

Is it just me, or do the two monsters in the above pic (bottom of picture) look curiously like those in Disney's "Monsters, Inc."?

Details from SlashFilm:

Based on the horror comic Rex Havoc, the film attempts to reinvent the classic 1950’s monster B-movie starring Reese Witherspoon as Susan Murphy, a California girl who, on her wedding day, has the bad luck to be hit by a meteor, which causes her to grow to be 49 feet, 11½ inches tall. Captured by the military, she’s renamed Ginormica. The rest of the cast includes:

Rainn Wilson - the evil alien Gallaxhar
Hugh Laurie - Dr. Cockroach, Ph.D.
Seth Rogen - the jellylike B.O.B.
Will Arnett - the half-ape, half-fish Missing Link
Kiefer Sutherland - General W.R. Monger
Stephen Colbert - The President