Recognize actor Gerard Plunkett? Probably not, under all that fish make-up. He first played Tuplo from the Land of Light in "The Broca Divide." "In an episode called 'Fire and Water,' where Daniel Jackson is thought to be off-world, dead on a mission, we called the Air Force and asked how they would do a color guard for a memorial. And they said, 'Why don't we send you one?' And that's what you see in the episode: actual U.S. Air Force personnel are folding the flag and doing salutes."
(Executive producer Brad Wright, in an interview with Cinescape.com)