Mark L. Walberg (born August 31, 1962) is an American actor, television personality, and game show host best known for hosting Antiques Roadshow, Temptation Island, and the game shows Russian Roulette on GSN and The Moment of Truth on Fox.

He plays on the World Poker Tour in the Hollywood Home Games for the Goodwill Industries of Southern California.

On the series finale episode (and also as an April Fools Day episode, as in which he is also a contestant in Lingo, playing for charity) on April 1, 2003, Walberg hosted Friend or Foe?.

Although he hosted the pilot, he was unable to get out of his Fox contract and was replaced by Christopher Knight when the series debuted.

[2] In 2010, Walberg hosted a series on CMT titled Your Chance to Dance.