Adam

From Memory Alpha, the free Star Trek reference

You may also be looking for the Biblical Adam.

Adam was one of the young followers of Dr. Sevrin who sought the mythical planet Eden. An accomplished musician, he played a guitar-type instrument, singing songs of Sevrin's call for an abandonment of technological society and an embrace of the natural life that preceded it.

After stealing the space cruiser Aurora in 2269, Adam and the rest of Sevrin's group were apprehended by the Federation starship Enterprise. He aided Sevrin in disabling the ship's crew and appropriating Enterprise shuttlecraft Galileo II. He died, along with Sevrin, when he ate an acid-saturated fruit on a world he thought was Eden. (TOS: "The Way to Eden")

Adam was played by actor Charles Napier. There are several times throughout the episode where Adam's hairpiece "skin" is seen separated from his real skin.