This is the genetic clone of the Jedi "Falon Grey", he is also the twin brother of Clone Trooper (and later Jedi Master) "X2".
He and his brother X2 were the ones responsible for training almost every clone trooper in the entire clone army.
He became a Sith Lord after being a clone trooper as well as a stormtrooper and is the one who took over the Imperial Remnant directly after Palpatine died, captured Luke Skywalker, and eventually was killed by his brother X2 on Mustafar.
This is the genetic clone of the Jedi "Falon Grey", he is also the twin brother of Clone Trooper (and later Jedi Master) "X2".
He and his brother X2 were the ones responsible for training almost every clone trooper in the entire clone army.
He became a Sith Lord after being a clone trooper as well as a stormtrooper and is the one who took over the Imperial Remnant directly after Palpatine died, captured Luke Skywalker, and eventually was killed by his brother X2 on Mustafar.