Actor Jon Hamm says that the worst job he ever did as a struggling actor was of the set dresser in soft-core adult films.

Hamm struggled to get his big break in Hollywood when he started in the 1990s and took whatever job he got, including the "soul-crushing" role of a set dresser in adult movies, reports femalefirst.co.uk.

"I was actually at that time working as a set dresser for Cinemax soft-core porn movies. It was soul-crushing," said Hamm.

Years later, after slaving away as a waiter and being dropped by his first agent, the 43-year-old landed the role of slick advertising boss Don Draper in "Mad Men" and never looked back.

"This is the best job I've ever had and maybe ever will have in my life. It's so fun to play all of this. It can be relentlessly dark. It can be terribly sexually inappropriate, is a way to say it. But who else gets a chance to do any of that stuff? There's so much there," said the actor.