American actor David Gallagher has an estimated net worth of $3 million. Throughout his entire career as an actor, he has been nominated for a Young Artist Award for five times. He was also a recipient of a Teen Choice Award. In addition to his role as Simon Camden on the TV series 7th Heaven, David Gallagher is also noted for his appearances on Look Who's Talking Now as Mikey Ubriacco, on Angels in the Endzone as Kevin Harper, and on Richie Rich's Christmas Wish as Richie Rich. He also served as the voice for the character of Riku on the video game series Kingdom Hearts.   

David Lee Gallagher was born on February 9, 1985 in Queens, New York, U.S. At age two, Gallagher has been active in the acting industry. He also started his modeling career at a very young age. He is a graduate of the University of Southern California majoring in film and TV studies.

David Gallagher is also noted for his appearance on projects like It Was Him or Us, Summer of Fear, Bermuda Triangle, The New Adventures of Spin and Marty: Suspect Behavior, Numb3rs, Betwixt, Super 8, Trophy Kids, The Vampire Diaries, Criminal Minds, CSI: Crime Scene Investigation, Scared of the Dark and Second Generation Wayans.