Lucas Till Angus "Mac" MacGyver Actor George Eads Jack Dalton Actor Justin Hires Wilt Bozer Actor Tristin Mays Riley Davis Actor Meredith Eaton Matty Webber Actor Isabel Lucas Samantha Cage Actor David Dastmalchian Murdoc Guest Star Michael O'Keefe Harry McGyver Guest Star Grant Springate Little Mac Guest Star Anthony Starke Henry Guest Star Carl Kennedy Tall Phoenix Tech Guest Star Paul Downs Colaizzo Executive Producer Brett Mahoney Executive Producer David Von Ancken Executive Producer Henry Winkler Executive Producer Lee David Zlotoff Executive Producer Craig S O'Neill Executive Producer, Writer David Slack Writer Bethany Rooney Director