Thomson and Thompson (French: Dupont et Dupond [dypɔ̃ e dypɔ̃])[1] are fictional characters in The Adventures of Tintin, the comics series by Belgian cartoonist Hergé.

[4] In Tintin in America there are characters similar to Thomson and Thompson: two policemen who collide with each other, and an incompetent detective called Mike MacAdam.

Their first contribution to the plot of a story comes in Cigars of the Pharaoh (originally published in 1934), where they first appear when they come into conflict with Tintin on board a ship where he and Snowy are enjoying a holiday cruise.

In his 1941 play Tintin in India: The Mystery of the Blue Diamond co-written with Jacques Van Melkebeke, Hergé named them as "Durant and Durand", although he later renamed them as "Dupont and Dupond".

In Land of Black Gold, the detectives mistakenly swallow some mysterious pills used to adulterate fuel, that causes them to sprout immensely long beards and hair that change colour constantly and grow at a break-neck pace.

[4] Another inspiration was a picture of two mustachioed, bowler-hatted, formally dressed detectives who were featured on the cover of the Le Miroir edition of 2 March 1919.

They make an appearance in L'ombra che sfidò Sherlock Holmes, an Italian comic spin-off of Martin Mystère, edited by Sergio Bonelli Editore.

[14] In the original French, Dupond and Dupont are stereotypically prevalent surnames (akin to "Smith") and pronounced identically (IPA: [dypɔ̃]).