While no one can replace the legendary Mel Blanc, the show must go on. And here are some of the voice actors who portrayed Looney tunes:
Noel Blanc: Son of Mel, performed various characters, especially on Tiny Toons
Joe Alasky: Primary for Sylvester, Tweety, Marvin the Martian and Daffy Duck.... mostly on Sylvester and Tweety Mysteries and Duck Dodgers. He also does several others, like Yosemite Sam (on the Bugs and Friends sing the Beatles and other times) and once voiced Bugs on a cartoon Network promo. he also was the voice of Plucky duck, the only Tiny Toons voice actor to eventually also play the character he was spun off from.
Billy West: Bugs Bunny and Elmer Fudd. he started playing them in Space Jam, and also voiced them in Bugs and Friends sing Elvis. he also played Daffy Duck in an episode of Histeria!
Jim Cummings: Taz (since Taz Mania). Also voiced Yosemite Sam in one episode of Sylvester and Tweety Mysteries.
Rob Paulsen: Played Porky pig on an episode of Animaniacs. Also portrayed one of the Gophers on Duck Dodgers
Bob Bergen: Plays Porky Pig in Duck Dodgers.
Jess Harnel: Portrayed the other Gopher on Duck Dodgers.
Frank Welker: Once portrayed Elmer Fudd
This list is incomplete, so if anyone has some to add, please be my guest.
Noel Blanc: Son of Mel, performed various characters, especially on Tiny Toons
Joe Alasky: Primary for Sylvester, Tweety, Marvin the Martian and Daffy Duck.... mostly on Sylvester and Tweety Mysteries and Duck Dodgers. He also does several others, like Yosemite Sam (on the Bugs and Friends sing the Beatles and other times) and once voiced Bugs on a cartoon Network promo. he also was the voice of Plucky duck, the only Tiny Toons voice actor to eventually also play the character he was spun off from.
Billy West: Bugs Bunny and Elmer Fudd. he started playing them in Space Jam, and also voiced them in Bugs and Friends sing Elvis. he also played Daffy Duck in an episode of Histeria!
Jim Cummings: Taz (since Taz Mania). Also voiced Yosemite Sam in one episode of Sylvester and Tweety Mysteries.
Rob Paulsen: Played Porky pig on an episode of Animaniacs. Also portrayed one of the Gophers on Duck Dodgers
Bob Bergen: Plays Porky Pig in Duck Dodgers.
Jess Harnel: Portrayed the other Gopher on Duck Dodgers.
Frank Welker: Once portrayed Elmer Fudd
This list is incomplete, so if anyone has some to add, please be my guest.