Mr. Mitchell is the computer science teacher of Polyneaux Middle School. He is their first computer science teacher and was introduced by Mr. McMcMc to demonstrate the computer's capability to do math equations (and video games). His computer was infected by a virus caused by The Yogman Twins. This same virus infected Robot Jones of which Principal Madman thought it was contagious to humans. Both the computer and Robot Jones were eventually repaired. Mr. Mitchell is voiced by Kevin McDonald.