Odd, I was thinking something more along the lines of the Daryls on the old (actually newer old) Bob Newhart show. As in:
Hi, my name's Larry. This is my brother Darryl, and this is my other brother Daryl.
Not sure who would play Larry though? Maybe Stan?
Hi, my name's Stan. This is my brother Randy, and this is my other brother Randy (and this is my other brother Randy, and this is... and so on...).
Has a nice ring to it. Not everybody needs to be a Randy.