Lester Blister

Lester Blister is the science teacher at the Rocket Academy.

Biography
Lester Blister took up the post of science teacher at the Rocket Academy in 1995, after the previous science teacher, Mr. Bell, was injured in an 'unfortunate though deliberate' mistake at a 'Science and the Nuclear Bomb' seminar.

A highly nepotistic man, he tends to assign simple, trivial tasks to his nieces (Sharon and Nicola Blister, who are pupils in his class) while assigning incredibly complex or impossible tasks to everybody else in the class.

Behind the scenes
Lester Blister was played by Robert Portal in series one, and by Dale Rapley in series two and three.