Adamson became interested in acting when he was a Junior at Alta High in an acting class. Then that summer, he was cast as Othello in the production Othello. He then attended the American Academy of Dramatic Arts until 2005 and loved acting ever since. He was only 18 when he moved to Hollywood calling it 'the roughest three years of my life.' His career role model is Christian Bale after he saw him in Empire of the Sun. He is also known to eat mayonnaise directly out of the jar. "Keeps me young," he says. On December 5, 2013, it was announced that Adamson was expecting his first child with girlfriend, The Bold and the Beautiful actress Linsey Godfrey. Adamson and Godfrey welcome their daughter on June 12, 2014. The couple officially announced the birth on June 22, 2014, during the 41st Daytime Emmy Awards.