Zach Callison (age 16) has acted in a few movies and TV shows, including "Are You Smarter Than a 5th Grader?" He used to play Matthew Parker. He has acted in Hannah Montana Forever, and Zeke and Luther.
- He is 3-5 years older than Matthew Parker, the character who he plays.
- In the winter of 2013, Zach Callison posted a message on his Facebook page indicating he would no longer be playing the role of Matthew Parker due to changes in his voice.
Zach in an Album 51 Recording Session