The fictional character Pee-wee Herman is portrayed as a 20-something character who (somewhat like Peter Pan) has never grown up and acts in an adolescent or pre-pubescent manner. His interactions include those with his wealthy nemesis Francis, (similarly a 20-something individual who acts like a kid) and his girl friend Dottie.
Pee-Wee is the creation of comedian Paul Reubens (born August 27, 1952).
The character was developed while Reuben was a member of the Groundlings comedy troupe, around 1980-1982, and became Reuben's comedic alter ego. To illustrate this, the comic's "star" on the Hollywood Walk of Fame is inscribed "Pee-wee Herman" rather than Paul Reubens.