Solin

From Memory Alpha, the free Star Trek reference.

Solin was the chief engineer of the Vulcan starship Seleya. Like the rest of his crew, he was driven mad, in 2153, by exposure to a trellium-D asteroid field; he attacked an Enterprise boarding party in sickbay. The medical scans taken of Solin allowed Dr. Phlox to decipher what had driven the Seleya crew mad.

Solin was killed along with the rest of the Seleya's crew when Captain Archer triggered an overload in their power grid, destroying the Vulcan ship. (ENT: "Impulse")

Solin was played by an unknown actor.