Hollywood was forced to say goodbye to a legend over the weekend, as Peter O'Toole passed away at the age of 81 after a long battle with illness.
The eight-time Academy Award nominee starred in such memorable films as Lawrence of Arabia and is being mourned today by a variety of actors and actresses on Twitter.
Among the most heartfelt messages on the Internet...
Neil Patrick Harris: “So sad to hear about Peter O’Toole passing away. Lucky to have worked with him for a month in Prague. Wonderful man, remarkable talent.”
Jonathan Rhys Meyers: "So sad to hear about the death of Peter O’Toole. One of a kind #legend"
William Shatner: "Thoughts and prayers going out to the family of Peter O’Toole"
Paul Feig: "Just heard that Peter O'Toole has died. RIP, sir. You were a hilarious, talented, wild and exciting class act. We need more like him."
Al Roker: "Peter O'Toole, actor in the Oscar-winning epic Lawrence of Arabia, has died aged 81. One of the greatest actors ever."
Ron Howard: "RIP Peter O'Toole. One of his generation's greatest talents."