Dr. Friesen was a Tau'ri scientist.



In 2002, he went on a mission with SG-1, Major Paul Davis and Jacob Carter to an abandoned Ha'tak vessel belonging to Anubis that was in Earth's orbit. He was killed by three Jaffa while investigating (without orders) the shield generator with Colonel Jack O'Neill later finding Frisen's body. (SG1: "Descent")

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