Chad Allegra (born January 20, 1980) is an American professional wrestler, currently signed to WWE, where he competes on the Raw brand under the ring name Karl Anderson, and he is a former WWE Raw Tag Team Champion.
Anderson is known for his work as a tag team specialist, most notably in New Japan Pro-Wrestling (NJPW), where he is a former four-time IWGP Tag Team Champion. He also holds the record for the longest reign and most defenses with the title, achieved on his first reign with former partner Giant Bernard. Anderson and Bernard also held Pro Wrestling Noah's GHC Tag Team Championship, and were voted tag team of the year by The Wrestling Observer in 2011. Anderson is a founding member and the second leader of the Bullet Club stable, and a three-time winner of NJPW's top tag team tournament, the G1/World Tag League, having won it in 2009 with Bernard, in 2012 with Hirooki Goto and in 2013 with Doc Gallows. He also wrestled for Southern California-based independent promotion Pro Wrestling Guerrilla (PWG) between 2007 and 2009.