I know I've been posted about guest stars from Dukes appearing in other shows in The Last 24 Hours thread, but I've just watched the CHiPs season 6 episode 'Speedway Fever' and spotted Daniel Currie as a CHP captain. It was one of only seven credited acting roles for Daniel, with another being as Homer, one of the fire fighters in 'The Great Bank Robbery'. The same episode also features a second CHiPs appearance for Katherine (Kitty) Moffat who was Trixie the genie in 'When You Wish Upon a Hogg'.
As an aside, I think there were three other characters named Homer across the seven seasons. How many can you remember?