Tom Dawson
From Tardis Wiki, the free Doctor Who reference
Dawson was a football coach at Coal Hill Academy. (TV: For Tonight We Might Die)
When Ram Singh paused and the ball was taken from him, Coach Dawson made him do 25 laps as punishment. (TV: For Tonight We Might Die)
When a female skin-peeling dragon came through the space-time rift in the school, she imprinted on his skin, as a tattoo. Dawson and her mate killed multiple people around the school to feed her. He later betrayed the dragon, and the male dragon killed him. (TV: The Coach with the Dragon Tattoo)