Who is "the mysterious Asian guy"? This actor appears in numerous episodes, but is never credited. Here are his appearances uncovered so far, let me know if you know of any others.
Singapore File (S02E09) - he is one of the guys shooting at McG at the end of the show; he is replaced by Beau Van Den Ecker who falls into a pond, then he appears later as another character who is still alive and shooting!
The Double Wall (S03E14) - he is the driver of the car behind Cowan, the guy who gets shot in the head.
No Bottles, No Cans, No People (S04E02) - when McG meets the Governor and the two of them go to see some Fed on a plane, he is there, looks like one of the Gov's bodyguards or something.
Didn't We Meet at a Murder (S04E22) - he is one of the guys who works for Kwan Hi Lim in the "carpet store."
Why Wait Till Uncle Kevin Dies (S06E08 - he is a security guard at the beginning, that's all I saw.
Anybody Can Build A Bomb (S06E12) - he's the guy who holds the gun on Danno at the airport .
Murder With a Golden Touch (S06E20) - he is a private detective at the beginning of show who gets knocked off, on screen for 4½ minutes but, as usual, no credit!!
Right Grave, Wrong Body (S07E06) - he plays a bartender.
And the Horse Jumped Over The Moon (S07E20) -- he is seen loading cargo into Ed Flanders' plane.