One of the three Earp brothers who confront Kirk's landing party in the Melkotian illusion of 1881 Tombstone in Spectre of the Gun, standing with Wyatt, Morgan and Doc Holliday.
Virgil Earp, the historical lawman of Tombstone and brother of Wyatt and Morgan, appears in the Original Series episode Spectre of the Gun, played by Charles Maxwell.
The Melkotians condemn Kirk and his officers to relive the gunfight at the O.K. Corral in the roles of the losing Clanton side. Virgil is one of the implacable figures who warn the supposed Clantons to be out of town by five o'clock and who brush aside Kirk's efforts to explain or to back down.
He takes his place in the line of four that advances on the corral at the fated hour. Like the others he fires repeatedly at the landing party, who stand unharmed because Spock has freed them of any belief in the illusion, and he vanishes when the Melkotians end the test.