Vinci was a crewman in the security contingent aboard USS Enterprise (NCC-1701).
In 2266, Captain James Kirk ordered security detail to the gymnasium, Vinci and another man responded. Charles Evans used his telekenetic powers to knock the redshirts to the floor Vinci drew his phaser, and Charlie made it disappear – along with every other phaser on the ship. (TOS: "Charlie X")'
On stardate 3196 he served on a security team ordered by Lieutenant Commander Giotto to hunt for the Horta, on Janus VI. (TOS: "The Devil in the Dark")
- Vinci was played by regular TOS extra Frank da Vinci.