Michael Sheen, 51, portrays Chris Tarrant in ITV show Quiz, a dramatised version of the famous Charles Ingram cheating scandal, which took place on Who Wants To Be A Millionaire? in 2001.
Ahead of introducing the second instalment of the drama to viewers last night, the live announcer referred to Michael, as Martin Sheen, who is another actor.
Michael called out ITV for the blunder in view of his 485,000 Twitter followers.
He wrote: “Hey @ITV the least you can do is get my name right in your trailers FFS.”(sic)
But seemingly finding the funny side to the blunder, he has since changed his Twitter name to Martin Sheen.
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Despite the blunders before the show, Michael’s portrayal of Chris has been a hit with the viewers.
The former host has also praised the actor for studying his mannerisms accurately.
Speaking on Good Morning Britain, Chris said: “I tell you what, I thought he was going to be just like all my mates, the impressionists, but Michael Sheen is an actor not an impressionist. He’s a superb actor.
“I know exactly what my voice sounds like and that is pretty close, he does weird things with his body, I actually do do that.”