Stop everything! Someone just complicated Spock and T'Pring's love life, but who did it? Here are a few clues...
He sailed with this Guy in Captain Sindbad and played the flute for him in Damon and Pythias.
He portrayed a suave psychologist who owns the world's coolest car in The Psycho Lover.
He provided necessary Diversions in The Great Escape and in real life was friends with the star.
And, in Star Trek TOS, he requested the glory of the kill from his Romulan commander in Balance of Terror, and not only cuckolded the Enterprise's first officer big time in Amok Time, he was originally cast as Spock before Nimoy decided to take the role.