Danny: "How new are you?"
girl: "Third generation."
The probie's from Dangerous Minds [tv show]! (most recently recognized as the scary brother from the CSI "Fannysmackin' " arc)
Gus's dad! (mirrors of Martin, with the dad in the department and the control/addiction problem)
Gus does a great job looking nervous/scared at the poker game.
Victor's so cool under pressure.
beer bottle! Okay, I did not see that coming (him killing him with the beer bottle).