Not much is known about Donovan's background or early life except that he is a survivor of the Cordyceps Brain Infection outbreak. He resides in the Boston area and is a smuggler.
Events of The Last of Us
In The Last of Us, Donovan is mentioned in one of Tess' notes. She writes Joel a reminder to bring bottles of pills to Donovan in the West End district as soon as possible. Judging by another artifact, Donovan is a smuggler who works in the network with Joel and Tess.