He was the host of Qui Veut Gagner des Millions ?, the French version of Who Wants to Be a Millionaire?, and the host of Zone Rouge, the French version of The Chair.

Foucault played himself in the 2006 film Mon Meilleur Ami directed by Patrice Leconte and starring Dany Boon as a taxi driver who wins the top prize in Qui Veut Gagner des Millions?.

Foucault shares his life with Evelyn Jarre without being married.

He has a daughter from a previous marriage, Virginia Foucault.

This French biographical article related to television is a stub.