Nerds Unlimited

This episode was particularly harrowing for the good Colonel O'neill, which was actually rather fitting as Richard Dean Anderson wasn't at his sparkling best during filming. "I don't think I was in too laughy a mood because I just had some knee surgery. We had this set on gimbals that would move up and down, and because of the surgery, I couldn't do the tumbling that I wanted to down the walls. So I was a little limited, and I'm not fond of limited in any way." There was one bright light on his horizon, though: "Working with Michael, I love. In fact, he came back a couple times in season six, and we've had some great one-on-one scenes. The powers that control these things seem like to put us both in a bag and shake it up. I really enjoyed that aspect of working with him. He and I have an innate understanding of rhythm in our scenes. It's easy working with Michael, because you can look over at him and see the light is — on. So it's all good."

Dan Shea, who's also the stunt coordinator and the man responsible for safety on set, has more trouble with his little finger than anything else. "I double for Richard Dean Anderson and love all the action stuff, but I do have one problem. I can't seem to hold my pinky in when I'm firing a gun! So I'll come in in the morning, say 'Hi' and Rick will hold up his little finger to let me know I've messed up again." Oh, sh — sugar. There's one thing that Siler is never without as Shea explains: "Usually, whenever you see me walking by, I'm holding a wrench. It started off as just a normal wrench, but over the years, they kept giving me bigger and bigger ones, and the one I carry around now is the same size as I am! I guess it must be for cranking up the Stargate," he jokes.

It do be like that with Jack and Daniel sometimes

"There's a scene right at the end where my character soaks Daniel Jackson with a water gun," Judge remembers. "I couldn't resist doing it and Michael Shanks had no idea what was coming. I pumped the thing up to the highest pressure and just let him have it. He was drenched and it hurt too. The look on his face was really priceless! We used that first take in the final edit because it was just so perfect."

Jack "If you work hard enough you'll only have to feel annoyed" O'Neill

Teal'c "Despite what everyone believes I do feel quite a lot" of Chulak

The entire regular cast and crew are buoyed by the energy Michael Welch [teen clone Jack] brought to the roll. Amanda Tapping recollects, "I don't know how many episodes of Stargate this poor boy had to watch, but he studied hard. He's a wonderful young actor very unassuming, very smart, really nice guy...He studied and had all these 'Rick-isms'. They weren't even 'O'Neil-lisms', because they are so Rick. We were all just laughing our heads off, and when the two of them finally met it was just 'Oh My God! It's like mini-me.' It was fun and very, very sweet. He was doing all these hand gestures and nuances, and had a nice sense of timing too. Richard Dean Anderson was delighted."

A collection, for a well loved garf