Simpsons star Seth Rogen

Simpsons star Seth Rogen

Seth Rogen is to star in 'The Simpsons'.

The 'Superbad' actor has written an episode of the hit US animated series, and has cast himself as a lead character.

Matt Groening, the creator of the cartoon, confirmed rumours Rogen had approached the show.

Matt said: "He wrote an episode we'll be reading soon, where Comic-Book Guy creates a superhero comic which then gets made into a feature film. Homer plays the lead and to slim down, Seth Rogen will play his personal trainer."

Matt also revealed most people do not know the long-running TV series is still produced as traditionally as possible.

He explained to Nuts magazine: "Every episode is still drawn by hand but we no longer have animators willing to ink and paint actual stories, so it's all done on computer.

"To get continuity with the way the way it was done traditionally, we dirty up the picture and make it look the way it used to, with a lot of dirt on the drawings, so no one knows it's done by computer."