Law & order ?

So I've been wondering for months now, and can't seem to find it ANYWHERE that I research.

-This one episode of Law Order: Criminal Intent (episode : In The Wee Small Hours pt. 1 2). What is the real life name of the actor who played Dino, one...

of 'The Rat Pack' as in the sentence they said
Stacking chips with Dino and Sammy.

I really would like to know, and it's bugging the sh!t out of me that I don't.

Also, if you can't answer this question, here's some other Law Order questions you might enjoy.

-Do you like Law Order?
-If so, which one(s)? [SVU, Criminal Intent, The Original, etc]
-What's your favorite episode?
-If you could be one character, which one would you be?
-What other similar law based shows do you enjoy? (I love Bones + NCIS + CSI)
-Who was your favorite guest star on Law Order?

1. Yes I love Law Order
2. Both
3. I don't know depends love/like mostly all.
4. The Lawer
5. CSI
6. I like Robin Williams as the guest star.

Dont watch CI, but...
1. yes I love it!
2. SVU
3. too many to list, although the ones with Munch and the deaf woman with kidney problems ranks up there (I'm still hoping Benson and Stabler get together)...
4. Benson
5. none...
6. hmm dunno?