Colonel Klaus Meyer

Colonel Klaus Meyer is the main antagonist of the 2001 horror film, Devil's Rock, he is a Nazi officer who summoned a powerful but ultimately uncontrollable demon by which to massacre the Allies but found his efforts to contain her in vain, to this end he manipulates a New Zealand commando captive into aiding him "banish" the demon, only to turn on his pawn and declare his intent to sacrifice him to the demon and ensure success for Hitler via occult means.

However, Meyer is pushed out of his magic circle by his would-be-victim and is devoured by the demon, who is then left to prey on the Nazi occupation force who arrive on the base soon after.