Tom is a minor character who is a friend of Ted Crilly.
He appears in the first-ever episode when a TV crew arrives on the island and Ted asks them if they can see a man wearing a 'I Shot J.R.' t-shirt. Tom then shoots a crow before shouting "Bird!". They later approach him after Ted arrives in the field and see that he has a scar which he got in a fight. He shows off another one he got on his buttocks.
His next appearance is when Ted Crilly rushes through Mass in order to get to the house of novelist Polly Clarke, who he fancies. Tom bumps into him with his van and Ted hitches a ride. Tom then stops by the bank to pick up some money and Ted is shocked when he hears gunshots. When Tom gets back into the van, he tells Ted that he didn't want to fill out any forms.
Tom later takes a job as a driver of a toxic waste truck and encounters Ted and Dougal who have been on the holiday from hell. He offers them a ride but can't remember which button opens the doors and which controls the release of the toxic waste. He accidentally presses the latter leading to Ted and Dougal being covered in toxic waste.
After the parochial house is overrun with rabbits, due to Ted saying 'Feck' to Bishop Brennan, they visit Tom in order to get rid of them but he intends to kill them with a machete and vice.