Thomas Guest is a son of Jamie Lee Curtis and Christopher Guest. He was adopted by them in 1996.
Thomas studied at University of Mary Hardin-Baylor before starting his career in the gaming industry. He prefers to stay away from the limelight and rarely makes public appearances. However, Thomas made some exceptions for his mom and accompanied her to the premieres of Avatar in 2009, Wreck-It Ralph in 2012 and Halloween in 2018. Additionally, he and Jamie cosplayed at the Warcraft premiere.
A curious fact: Thomas appeared in a 2014 documentary titled World of Warcraft: Looking for Group.