Veteran Kannada actor Harish Rai, who had been battling cancer, passed away on Thursday at Kidwai Hospital in Bengaluru. Harish Rai, remembered for his roles as Don Rai in 'Om' and Chacha in 'KGF', had been suffering from thyroid cancer that had spread to his stomach. Over his long career, Harish Rai appeared in Kannada, Tamil and Telugu films.