His death was announced today by World Wrestling Entertainment.
No details were provided, but Sullivan had been in ill health in recent months.
WWEis saddened to learn Kevin Sullivan has passed away at age 74, the organizations statement reads.
Wrestlers Nancy Toffoloni and Kevin Sullivan in 1984Getty Images
The onetime Taskmaster also became a creative force behind the scenes for WCW.
Sometimes simply known as Woman, she was portrayed by Nancy Toffoloni, Sullivans wife at the time.
Sullivan and Toffoloni divorced in 1997.
Sullivan and Chris Benoit were rivals in the ring during the mid-1990s.
By 97, Sullivan had devised a routine in which he heard voices from someone he called The Master.
The double murder-suicide occurred in 2007.
He reportedly underwent surgery and suffered complications including sepsis and encephalitis.
Information on survivors was not immediately available.
