The list of impressive House guest stars for next season continues to grow.

Andre Braugher will play the head of the psychiatric institute in which House resides to begin season six.

Franka Potente will portray a yet-to-be revealed character.

And now we can announce that James Earl Jones has signed on to appear in upcoming episode this fall. He'll play an African dictator that becomes a patient at Princeton-Plainsboro.

Jones starred in Field of Dreams, among other movies, but is best known for his deep baritone of a voice. He voiced Darth Vader in Star Wars and Mufasa in The Lion King.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.