Rastapopoulos is in a series of how many? 
Rastapopoulos: Roberto Rastapopoulos is a fictional character in "The Adventures of Tintin", the comics series by Belgian cartoonist Hergé. The Adventures of Tintin: The Adventures of Tintin (French: "Les Aventures de Tintin" ; ] ) is a series of 24 comic albums created by Belgian cartoonist Georges Remi, who wrote under the pen name Hergé.
24