I just found the quote. I did a google search and it came up with one of alf's previous pages:
ow_dearalf16.html but for some reason I can't access oddworld.com at the moment. My university server must be stuffing up

. However the following is the full transcript that I got from the Google cached version of the page:
Q: I've seen a picture of these two hideous old looking Vykkers, (Not like they are all not hideous) but they are friggin' ugly. They also always stand by facing their backs facing each other. They're purple. They seem to be like the head Vykkers. Anyway, I would just like to know what their names are.
Alf: Their names are Humphrey (The scientist) and Irwin, his ...friend. If they have friends. These guys are so ugly, they could scare the pants off of a Slig. I personally like it when they face away from me, because then I don't have to see their ugly mugs. Bleagh.