Michael Sheen, the actor who played Sir David Frost on stage and in the 2006 film Frost/Nixon, has paid tribute to the broadcaster's "extraordinary tenacity."
"People talked about the rapport he had with people and how genuinely nice he was," Sheen said. "And of course people underestimated him because of that."
"He made you feel so appreciated and like he was genuinely so glad to see you."
Admirers of Sir David Frost today hailed his "extraordinary" life after "one of the giants of tv" suddenly died from a heart attack.
A look at some of the famous faces interviewed by veteran broadcaster Sir David Frost, who has died of a heart attack, at the age of 74.