O'Toole, best known for his role in "Lawrence Of Arabia", died Dec 14 following a long illness at the Wellington hospital, London.
Celebrities took to Twitter to express their grief. Here is what they have to say:
Amitabh Bachchan: What? Peter O'Toole no more! That is most sad!
Anupam Kher: My first acting job was of an extra with Peter O'Toole in "Kim". I had one line with him. His presence and performances were mesmerising. RIP.
Madhur Bhandarkar: Peter O'Toole was one of the acting world's most charismatic figures. His memory will live on for decades to come. RIP.
Abhishek Bachchan: So sad to hear of the passing of Peter O'Toole. 'Lawrence of Arabia' is one of my favourite films. A huge inspiration to all actors. RIP.
Mahesh Bhatt: Long fade out! Peter O'Toole has died aged 81.
Randeep Hooda: RIP Peter O'Toole...Legend!
Shekhar Kapur: Goodbye Peter O'Toole. "Lawrence of Arabia". "Lion in Winter". "Becket". Unforgettable.
Kunal Kohli: "Lawrence of Arabia" and "Becket" two of my favourite films. RIP Peter O'Toole.
Manoj Bajpayee: RIP Mr. Peter O'Toole! Thanks for your performences! Thanks for guiding us through all the great work that you have put in front of us! Loss.
Siddharth: RIP Peter O'Toole. Greatest debut in film history. Many memorable performances to show he wasn't just lucky. Time to re-watch his classics.