Stargate-where out of work sci fi actors go.
I was cracking up the other day watching some SGA episodes. You have Robert Picardo from Voyager, Connor Trinneer from Enterprise and Jewel Staite from Firefly.
I half expected Michael Dorn or Jeffery Combs to show up.
Then of course in SG1 you have Claudia Black and Ben Browder from Farscape...
Am I missing more? I know there were a bunch of cameos on SG1 as well.