The sad thing is that of all the stuff he was in these are all I remember watching, that and some tv pilot where he was an android in some odd futurist show that never got picked up. I agree it's more impressive that he's Rosemary's son than George's cousin. She was more respectable. RIP.
He was very much of the old school character actors where no part was too small that he wouldn't take it and do his best. I totally forgot he was in Trek. His character on NCIS just got stabbed the other day in the newest episode, I wonder if they were going to use that as a way to give him time for treatment?
You know you are a legend when you do one role and its remembered for life, ala Bob Morton.
This guy was memorable in every role, no matter how small. He was even in Iron Man.
Sad way to go, only 61. Terrible.