Just like Luigi, he is voiced by Charles Martinet.
Role in the game
Paper Luigi is Luigi's paper form, just like Luigi, he can jump very high, unlike Paper Mario. He is a lazy coward just like his original counterpart from the game Super Mario series.
He appeared in Paper Mario on the Nintendo 64 when he plays an major role in the game, he accompanies Paper Mario to rescue Paper Peach who has been taken hostage by Paper Bowser.
He appeared again in Paper Mario on the GameCube when he plays a minor role when he helps Paper Mario to rescue Paper Peach from the Shadow Queen's possession.
In Super Paper Mario, he was hypnotized by Natasia and turned into his mean alter-ego Mr. L, but Paper Mario, Paper Peach and Paper Bowser are able to free him by convincing Lord Blumiere to reform, then Paper Luigi is hypnotized again, this time by Dimentio who has bigger plans than Lord Blumiere, then turned into Super Dimentio, but Paper Mario, Paper Bowser and Paper Peach are able to save him once again from Dimentio's control and scold Dimentio into freeing Paper Luigi which Dimentio agrees that the fact Dimentio explode into nothingness, freeing Paper Luigi once again. Paper Mario, Paper Luigi, Paper Bowser and Paper Peach manage to defeat Shadoo who tried to defeat them by impersonating them earlier.
He is revealed that he was manipulated by Dimentio earlier, it is revealed that Paper Luigi has the ability to transform into 8-Bit form of himself with Super Star to crush the opponents.