Peter Korvo (LC-199)

LC-099, Luke Clone #99 or most commonly known as Peter, was a clone of Luke Skywalker who came into existence in a lab on Ruusan in 10 BBY. The type of Luke clone's that Peter was, was not the Luke Clone's made by Jaruus C'baoth. Instead, these clones were made by an unknown scientist in a lab in 11 BBY. All 500 of these Luke Clones (including Peter) revolted and escaped from the lab. After that, all the clones split up and went different paths all across the galaxy. In 4 ABY, while on Coruscant, Ahsoka Tano came across Peter and took him in as her Gray Jedi apprentice. While exploring the abandoned Echo Base in 5 ABY, the master and the apprentice came across Luke Skywalker in the base and helped him with his mission.