You asked:

stephen colbert and who starred in monsters vs. aliens

  • A star of Monsters vs. Aliens with Stephen Colbert are Reese Witherspoon, Seth Rogen and Rainn Wilson.
  • Reese Witherspoon
    Reese Witherspoon
    Reese Witherspoon

  • Seth Rogen
    Seth Rogen
    Seth Rogen

  • Rainn Wilson
    Rainn Wilson
    Rainn Wilson