Kol Darr is a character from He-Man and the Masters of the Universe.
When Kol Darr came to visit He-Man at the Royal Palace, Skeletor lured him into a trap and used the Mirror of Moravad to make an evil double of him. The double asked to see the inside of Castle Grayskull, then ran off in search of its secrets. Meanwhile, the real Kol Darr tricked Skeletor into creating a good double of himself, which he sent to the Royal Palace to disable the freeze field that his double had planted and tell everyone what was happening. Kol Darr's double eventually found the guardian of Castle Grayskull's secrets, but was transformed to glass and shattered upon failing the guardian's test. He-Man then left for Snake Mountain with Man-At-Arms, Teela, and Skeletor's double, and rescued the real Kol Darr.