Sixes

Sixes was the nickname of a clone trooper who at some point fought alongside Anakin Skywalker prior to his mission as a Sith Lord to the planet Ryloth. During the mission, Vader saw the face of the Captain of the Emperor's Royal Guard, who was also a clone, and was reminded of Sixes and other clones he had served alongside. Like all clones of the Bounty hunter Jango Fett, Sixes was a created on the planet Kamino and had tan skin, black hair and brown eyes. He stood 1.83 meters tall.

Behind the scenes
Sixes was first mentioned in a list of clones that Darth Vader remembered in Lords of the Sith, a novel written by Paul S. Kemp and released in 2015. The clone's nickname is very similar to that of CT-5555, who was known as "Fives" and appeared as a recurring character in the Star Wars: The Clone Wars television series. It is unclear the mention of Sixes is intentional and meant to represent Vader misremembering CT-5555's name or the name of a separate clone, or if the inclusion of the name was an error which was meant to refer to Fives.

Appearances

 * Lords of the Sith