Robert "Bob" Parr, also known as "Mr. Incredible", is the primary protagonist in Pixar's The Incredibles franchise. He is one of the world's most famous Supers, and is also considered one of the most powerful. His powers include enhanced strength, stamina, durability and senses.
After the unfortunate situation wherein the world began to abhor and fear Supers, Bob settled down and started a family with his wife Helen. Together they have three kids: Violet, Dash and Jack-Jack. And he still goes out "bowling" with his friend Lucius Best.
For the feature film and recent video game appearances, Craig T. Nelson was enlisted to voice Mr. Incredible. Craig's naturally deep, yet soothing voice is a perfect fit for the character.
Richard McGonangle puts on the tights (vocal tights, that is) for the first two Incredibles video games. Richard is a pretty darn good replacement. He's got the power and gruffness to his voice, but also the calmness. There are times when Richard sounds nearly indistinguishable from Craig, but there are also instances where the difference is noticeable (though not distracting).
Even though McGonagle was probably the best possible double for Craig, the original is getting my vote.