He says they did not beam aboard , but merely walked out from behind the curtains .
Suddenly , Dr. Leonard McCoy , played by Dan Aykroyd , runs onto the bridge saying that the aliens are on the ship .
Leonard McCoy says they did not beam aboard , but merely walked out from behind the curtains .
Suddenly , Dr. Leonard McCoy , played by Dan Aykroyd , runs onto the bridge saying that the aliens are on the ship .