In 2007 he appeared on the TV series The Suite Life of Zack and Cody. His best known role came on the ABC series Ugly Betty as Justin Suarez from 2006 to 2010. Mark appeared on the series Hot in Cleveland in 2010. He starred as Harvey Flynn in the TV movie Madison High in 2012 and appeared in the series Oishi High School Battle. In 2014 he starred as Mickey in the film White Bird in a Blizzard. For Ugly Betty Mark has been nominated for two ALMA Awards, two Screen Actors Guild Awards, and two Young Artist Awards. Mark appeared on Dr. Phil and said that he received many death threats and verbal abuse from people for his role on Ugly Betty.
