Don Rickles, nicknamed The Merchant of Venom, has died at age 90. Rickles pioneered insult comedy and became a sensation on television and night clubs in the 1960s. He was performing until recently. Rickles had started as a dramatic actor and scored some supporting roles in memorable films but it was his stand-up comedy routine that made him a legend. Rickles penchant for insulting celebrities and everyday people paved the way for a new brand of comedy, though Rickles never delved into the vulgarity that characterizes many of the acts performed by those he inspired. Rickles' appearances on "The Tonight Show" with Johnny Carson and the Dean Martin celebrity roasts were the stuff of legendary comedy moments on television. He occasionally delved back into acting in major hit films such as "Kelly's Heroes", "Casino" and the "Toy Story" franchise for which he provided the voice of Mr. Potato Head. He was scheduled to continue in that role in the next entry in the series. He was also the subject of the acclaimed documentary "Mr. Warmth: the Don Rickles Project" by director John Landis. For more click here.