As the head of the Earth Protection Force, Griffin is responsible for the unconditional defense of the Earth against alien attacks. He once concluded a coalition with Bishop, a representative of the Utroms, to strengthen the Earth's defense, but was stubborn and uncompromising in his actions against all strangers, including mutants. General Griffen first appeared being debriefed about the upcoming arrival of Tokka. He was shown to be at odds with Bishop, as he wouldn't allow Utrom weaponry to be used on the beast.