A Vulcan official attached to Ambassador Soval's mission on Earth, present at the dispute over what should be done with the wounded Klingon courier Klaang.
Tos appears in Broken Bow. After Klaang is shot by a farmer in Oklahoma and taken to Starfleet Medical, the Vulcan delegation comes to advise the humans on a species they have never met.
Tos stands with Soval as the Vulcans argue that Earth is not ready to deal with the Klingons, that the launch of Enterprise should be delayed and that Klaang should be allowed to die and his body returned, as Klingon custom would supposedly prefer.
Archer, called in to hear the news, loses his temper at what he sees as one more attempt to hold humanity back. Admiral Forrest sides with him, and the decision is taken to carry Klaang home alive aboard Enterprise.