McKenna
Helmsman McKenna was the conn officer assigned to the  for its launch in 2258. As a result of developing lungworm, he was replaced at the helm by . ()

Appendices

Background information 
 

Since lungworm is a real species that does not infect Humans, McKenna might not be (completely) Human.

Apocrypha 
McKenna's first name was revealed to be Kyle in the  novel The Gemini Agent. The IDW Star Trek: Ongoing  Red Level Down revealed that he had a sister at Starfleet Academy named , a member of Red Squad, who had also come down with the same condition.

External link

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Individuals
USS Enterprise (NCC-1701) personnel (alternate reality)