Do You Know This Kid XXIII: Updated
This little Jewish dude was born in 1952 near the east coast of America. He is a famous actor who has been in a few blockbusters. He usually plays the brainy parts.
Update: Well, two of you guessed correctly (there were no other guesses). That smiling baby is indeed Jeff Goldblum. Congratulations to Anthony Cody and Althea. Credit must go to Mr. Cody though, he got it within minutes of its posting.