Bolivar Trask (X-Men Movies)

Bolivar Trask is the main antagonist of X-Men: Days of Future Past.

He is portrayed by Peter Dinklage who also played Simon Bar Sinister and Captain Gutt.

X-Men: Days of Future Past
Trask is a military scientist and the head of Trask Industries who plots to create an army of Sentinels whose purpose is to hunt down and destroys mutants. He is also the boss of his right-hand man William Stryker.

Trivia
This version of the character is played by Peter Dinklage making Trask a little person.