Robert "Bob" Parr (a.k.a. Mr. Incredible) (voiced by Craig T. Nelson) is the protagonist of the film. Bob possesses tremendous strength, and heightened resistance to harm. He also has enhanced senses. He is married to Helen Parr, the superheroine known as Elastigirl, and they have three children together: Violet, Dashiell Robert ("Dash"), and Jack-Jack.
Bob found forced retirement difficult, and often had to cheat his way out of the house on Wednesdays so that he could continue his superheroics. He was shocked to discover that his "Number 1 fan", Buddy Pine, had reformed himself as the villain Syndrome after Mr. Incredible had squelched Pine's wish to be his ward in an attempt to protect him, and it was not until Syndrome threatened the family's lives that Bob realized that his family was his "greatest adventure".
Source: Wikipedia, "List of The Incredibles characters", available under the CC-BY-SA License.