Omega (Remembrance of the Daleks)
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An incarnation of Omega, already a member of the Triumvirate, emerged from regeneration as "a huge man with wide shoulders and muscular arms" in a "definite drift from the regenerative norm", leading some Gallifreyan observers to speculate his body was a genetic memory of the dark time. At one point, he stretched out his arms in a way that made him look like a barbarian king. (PROSE: Remembrance of the Daleks)