Lieutenant Dickerson is the Enterprise security officer in The Savage Curtain who commands the honour guard that receives an apparent Abraham Lincoln in the transporter room.
Lieutenant Dickerson is a security officer aboard the USS Enterprise in the Original Series episode The Savage Curtain. When a figure claiming to be President Abraham Lincoln appears in space near Excalbia and asks to come aboard, Kirk orders full honours.
Dickerson leads the detail in dress uniform and gives the commands as the visitor materialises, complete with recorded ruffles and flourishes. He treats the guest with careful respect, though like most of the crew he does not know what to make of him.
He later remarks that he would be ready to salute the visitor's claim if the captain says so. The welcome over, Kirk and Spock go down to the planet with Lincoln, where the rock creature Yarnek sets them to fight a staged battle of good against evil.