That show debuted January 13, 2008 and was cancelled on May 18, 2009.
Dekker is currently playing the lead character Nate Palmer in the web based science fiction series IQ-145.
He then appeared in Star Trek Generations and Village of the Damned.
Later, in 1997, he became a regular on the Disney Channel Original Show Honey, I Shrunk the Kids: The TV Show based on the movie of the same name where he played Nick Szalinski for three years.
He is best known for his roles as John Connor in Terminator: The Sarah Connor Chronicles, Nick Szalinski on Honey, I Shrunk the Kids: The TV Show, and Zach on Heroes.
He is also a singer and has written and produced two albums.
In 2009, Dekker appeared in From Within, a thriller filmed in 2007, and My Sister's Keeper, a drama in which he starred alongside Cameron Diaz, Alec Baldwin, Abigail Breslin and Medium star Sofia Vassilieva.
Recent roles include Laid to Rest, which also stars Lena Headey, All About Evil, an indie horror film, Slaughter's Road, a werewolf film co-starring Ray Stevenson and directed by David Hayter, and Cinema Verite, a behind-the-scenes look at the making of the 1973 PBS documentary series An American Family in which he plays Lance Loud.
His mother is a concert pianist, acting coach, actress, and singer, and his father is an artist, set designer, opera singer and actor.
As a child, he and his parents moved all over the world, spending time in the United States, Europe (Yorkshire, England, in particular) and Canada.