Characters: Monsters vs. Aliens

Characters from the series.

Introduced in the Movies and specials

    Susan Murphy/Ginormica 

Susan Murphy/Ginormica

Voiced by: Reese Witherspoon (Film), Riki Lindhome (TV series)

    Dr. Cockroach Ph. D 

Dr. Cockroach Ph.D

Voiced by: Hugh Laurie (Film and Mutant Pumpkins from Outer Space), James Horan (Night of the Living Carrots), Chris O'Dowd (TV series)

    The Missing Link aka Link 

The Missing Link aka Link

Voiced by: Will Arnett (Film and Mutant Pumpkins from Outer Space), David Kaye (Night of the Living Carrots), Diedrich Bader (TV series)

    B.O.B. 

B.O.B

Voiced by: Seth Rogen (Film), Eric Edelstein (TV series)

    Insectosaurus/Butterflysaurus 

Insectosaurus/Butterflysaurus

Voiced by: Conrad Vernon

    W.R. Monger 

W.R. Monger

Voiced by: Kiefer Sutherland (Film), Kevin Michael Richardson (TV series)

    The Invisible Man 

The Invisible Man

    President Hathaway 

President Hathaway

Voiced by: Stephen Colbert (Film), James Patrick Stuart (TV series)

  • Dude, Where's My Respect?: In one episode in the animated series, he felt that no one listens to him even though he is the president.note 
  • Everyone Calls Him Barkeep: He is often called by his title.
  • Man Child

    Gallaxhar 

Gallaxhar

Voiced by: Rainn Wilson

    Derek Dietl 

Derek Dietl

Susan's ex-fiance.
Voiced by: Paul Rudd (Film), Nolan North (TV series)

  • Jerkass: Breaks of his engagement with Susan when she turned into a monster. She realized he cares more about his career than her.
  • Narcissist

Introduced in the T.V. series

    Coverton 

Coverton

Voiced by: Jeff Bennett

  • Charlie Brown Baldness: He has his alien species' equivalent of hair.
  • Cool Chair: Has a hover chair to compensate for Earth's gravity. It also contain a variety of weapons.
  • Mind over Matter: Possesses powerful telekinesis.
  • The Mole: He's on Earth to prepare it for invasion, though he's not very good at keeping it secret, often blurting it out in frustration and having to backtrack.
  • The Rival: To Susan as the leaders of their respective teams.
  • Smug Snake
  • Token Evil Teammate

    Sqweep 

Sqweep

Voiced by: Haley Tju
  • Adorkable
  • Ambiguous Gender: Her gender is unknown, but a lot of fans believe she is female due to her taste in things and her voice.
  • Bizarre Alien Biology: Sqweep's species have a dangerous type of body waste disposal called Number 7 and need a special toilet to handle it.
  • Color Coded Emotions: The tips of her antennae tend to glow when she expresses a strong emotion: Green for Happiness/Joy, Yellow for Fear/Anxiety, Red for Anger/Aggression, and Purple for Sadness/Confusion.
  • Innocent Prodigy
  • Intergenerational Friendship: With Link, Sqweep being 700+ years old (But mentally still a child)and Link being millions of years old (biologically at least, considering he was frozen in ice for centuries before unfreezing).
  • Really 700 Years Old: As revealed in "The Friend Who Wasn't There", Sqweep is 768.
  • Shorter Means Smarter: The smartest of Team Alien.
  • The Rival: To Dr. Cockroach in intelligence.

    Sta'abi 

Sta'abi

Voiced by: Gillian Jacobs

  • Alien Lunch: Sucks down small, tentacled alien creatures whole and alive, because eating cooked food is for Puny Earthlings. A mighty warrior such as herself requires a "live protein diet".
    Susan: You mean high protein?
    Link: (nervously eyeing a pile of the squirming creatures) I don't think she does...
  • Proud Warrior Race Gal
  • Punny Name: Susan and Link often mispronounce it as "Stabby".
  • Yellow-Skinned Space Babe

    Vornicarn 

Vornicarn

Voiced by: Fred Tatasciore

    Rule-bot 9000 

Rule-bot 9000

Voiced by: James Urbaniak

    Doctor Cutter 

Doctor Cutter

Voiced by: Amy Sedaris