All info was provided Chad Dylan Cooper (Sterling Knight) is an actor who plays Mackenzie on the show MacKenzie Falls and is now the newest star of So Random!. Chad Dylan Cooper also goes by, "CDC", "Chaddy", or simply "Chad", and his last name used to be Goldfarb. He believes that comedy only involves being "funny", something that he thinks is stupid. He is also an enemy of So Random!, which he often refers to as "Chuckle City". Despite his constant antagonism with the So Random! cast, Chad is capable of working with them in some cases, occasionally treating them civilly and even engages in casual conversations with them on multiple occasions. Sonny Munroe recently broke up with him in the episode "Sonny With a Choice." He also took over Sonny's role on "So Random!" due to Demi Lovato's d