Star Trek II: the Wrath of Khan 1982 D: Nicholas Meyer St: William Shatner, Ricardo Montalban, Leonard Nimoy, DeForest Kelley, James Doohan, Walter Koenig, George Takei, Nichelle Nichols, Paul Winfield, Kirstie Alley
Revenge Served Cold: 4 Throats Slit on Regula: 6 Underground Fight: 2 Nebula Rumble: 15 Khan: 1* Spock: 1 (self-sacrifice)
*Khan is not shown immediately before the explosion but a few shots are in between. It's not a true cutaway but I think he's important enough to count. Right before the cutaway from him his eyes widen; that might mean he's just expiring from battle wounds. It's ambiguous whether he died from the Genesis Explosion or not. If he did, his character count should be raised to 7.