Sarg (The Taking of Chelsea 426)
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Colonel Sarg was a Sontaran who was art of the Fourth Sontaran Intelligence Division. He was a typical Sontaran who wanted to get rid of all Rutans. He was part of the invasion of Chelsea 426. He was killed in a brawl with General Kade after he said he could do better job as a general than him. (NSA: The Taking of Chelsea 426)