Warden is a supporting character of DreamWorks’s 21st full-length animated film, Megamind, the first installment in the franchise of the same name.
He is the Warden of Metro City Police Department who kept the titular character in prison for 88 life sentences for his crimes, until he turned into a hero. From now on, he's going to keep Tighten in prison for attempting to destroy and rule over Metro City.