Sergeant Lipton is a security man at McKinley Rocket Base in Assignment: Earth who challenges Gary Seven near the launch pad and is put to sleep with Seven's servo.
Sergeant Lipton is a member of the security force at McKinley Rocket Base in the Original Series episode Assignment: Earth. He is on duty close to the launch pad as the countdown proceeds for an orbital nuclear platform.
Lipton finds a stranger carrying a black cat where no one should be. Gary Seven produces identification naming him as an official of a government agency, but the sergeant is not satisfied and goes to telephone for confirmation.
Before he can complete the call Seven uses his servo, a pen-sized tool, to send him into a pleasant sleep. With Lipton out of the way Seven rides the gantry lift up to the rocket and begins his sabotage of its guidance system.