Jolyon Wagg (French: Séraphin Lampion) is a fictional character in The Adventures of Tintin, the comics series by Belgian cartoonist Hergé.

[3] Wagg appears late in the series, starting with The Calculus Affair, where his self-importance and insensitivity enrage Captain Haddock.

Wagg also appears in The Red Sea Sharks, The Castafiore Emerald, Flight 714 to Sydney and Tintin and the Picaros.

He sees himself as Haddock's friend and does not appear to realise that the Captain's outbursts demonstrate genuine dislike for him.

He also makes a cameo appearance in the televised episode of The Seven Crystal Balls, whereas in the original comic album, he is absent.

What Hergé intended in French is not possible to translate directly, however he "wanted something 'puffed up', a tone which expressed at the same time fleshy and weak.