Obi-Wan "Ben" Kenobi () is a character in the "Star Wars" franchise. Within the original trilogy, Obi-Wan is a Jedi Master as a supporting character and is portrayed by English actor Alec Guinness. In the later-released prequel trilogy, a younger version of the character serves as one of the two main protagonists, alongside Anakin Skywalker, and is portrayed by Scottish actor Ewan McGregor. In the original trilogy, he is a mentor to Luke Skywalker, to whom he introduces the ways of the Jedi. After sacrificing himself in a duel against Darth Vader, Obi-Wan guides Luke through the Force in his fight against the Galactic Empire. In the prequel trilogy, set decades earlier, he is initially a Padawan (apprentice) to Jedi Master Qui-Gon Jinn and later the mentor and friend to Luke's father Anakin, who falls to the dark side of the Force and becomes Vader. The character briefly appears in the sequel trilogy as a disembodied voice, speaking to Rey. He is frequently featured as a main character in various other "Star Wars" media.