Damian Lewis is at the centre of rumours that he will be the next James Bond after bookies received a flurry of bets on him succeeding Daniel Craig.
William Hill slashed the odds on the Homeland star from 25-1 to 3-1, making him second-favourite for the role behind Idris Elba.
"This is an unprecedented gamble, as for no apparent reason we have seen bets of up to £200 (€276) on Damian Lewis being named as the next Bond. This might well be significant," said William Hill's Rupert Adams.
At Betfair, Lewis' odds have gone from 50-1 to 4-1.
"Damian Lewis hadn't seen any interest in the betting until the weekend, but an absolute landslide in bets has forced us to cut the odds," said a spokesman.
"Idris Elba looked like a foregone conclusion but Damian Lewis has now thrown a huge spanner in the works."
Paddy Power cut the odds from 20-1 to 5-2, saying: "As the spectre of Daniel Craig disappears into the distance, it looks as though Lewis will be the next man with the golden gun."
Craig is widely expected to bow out of the franchise after the next film, Spectre.
Lewis narrated Ian Fleming's Diamonds are Forever audiobook and has joked that the character's Scottish heritage - a major plot point in Skyfall - has "paved the way for a red-headed Bond".
Barbara Broccoli, the Bond producer, is a fan of Lewis after working with him on last year's The Silent Storm.
She went to great lengths to keep the actor happy while on location.
"She overheard me say my pillow was like a brick and she arrived in her car from London with two duck-down ones," he recalled.