Awhile back I looked up the Urgo episode on wikia and seen the actor who played Urgo (Dom DeLuise) had three sons that were also actors on Stargate.
Today I was watching 3rd Rock from the Sun, in the episode Dick had sex with one of his students mother. Later on in the episode the student's father and two brothers showed up at Dick's office. It was Dom with his three sons in the scene.
Screenshot of Dom.
Screenshot of his three sons, middle one is the student.
One on the left is Michael DeLuise aka Colonel Danning in the Wormhole X-Treme! episode.
One in the middle is David DeLuise aka Pete Shanahan, Samantha Carter's boyfriend in a few episodes.
One on the right is Peter DeLuise, a director for stargate and was in several episodes as background characters.
Not hugely Stargate related but still kinda interesting to learn about the DeLuise family of actors. :)