Tony Jay (February 2, 1933 – August 13, 2006) was an English–American actor, voice actor and singer, who was a former member of the Royal Shakespeare Company, best known for his very low distinctive Baritone voice.
For Nickelodeon, he voiced Dr. Lipschitz in Rugrats, as well as Rex Smythe-Higgins, the Voice in the Sky, and a Doctor in Hey Arnold! He also provided the voice of Lord Dregg in the last two seasons of the 1987 Teenage Mutant Ninja Turtles series, over a decade before Nickelodeon acquired the franchise.
In April 2006, Jay underwent surgery in Cedars-Sinai Medical Center to remove a non-cancerous tumor from his lungs. Afterwards he became critically ill and was readmitted to Cedar Sinai, where he died on August 13, at the age of 73.