VIDEO : Last Jedi' Brings Back Iconic Master

"The Last Jedi" introduces a few new faces, like loveable additions the Porgs.
Iconic characters also returned.
Luke Skywalker tells Rey about the history of the Force.
Master Jedi Yoda appears as a Force Ghost.
The green guy also appeared in "The Force Awakens," but you may not have realized it.
Yoda's voice can be heard several times in Rey's flashback.