Donovan was a leader in the Mars Resistance. While not exactly senior to Number One in the organization – especially on Mars – many of the Resistance's more extremist elements took their orders from him.
During the Earth Alliance Civil War in 2261, he was stuck Earthside and unable to maintain contact with his operatives on Mars. In one situation, Phillipe went over Number One's head and checked with Donovan before he bombed an Earthforce patrol he saw arriving at the Red Planet Hotel, killing ten civilians in the process.[1]