Hey, It's That Guy!: Most older viewers will recognize Lorenzo Lamas (Reno's actor) as Lance Cumson from Falcon Crest and the jock from Grease. These days people know him as Hector Ramirez from The Bold and the Beautiful.
Branscombe Richmond (who played Bobby Sixkiller) was a bad guy in the Steven Seagal movie Hard to Kill, and he was also Mathayus' half-brother.
The show's Big Bad is also the show's producer. Just watch the post-credits closing logo scenes.