Doyle is the impressionable friend of Eric (Buzz Bummerman.) He has a good heart despite being friend zoned by Jennifer's friend who also accompanied them to the trip to mega mountain.
Doyle is Eric's best friend, but despite this, he calls his friend out at any chance he can. At one point, Buzz states that he would be doing Jennifer a favor by taking Rocky's place as her boyfriend. Holding back puke, Jennifer was about to respond, when Doyle interjected with a sarcastic "Yeah, that'll cheer her right up!" before being stampeded by the 3 Idiots.