United Kingdom, June 2 -- Aaron Paul has called prankster Bryan Cranston "the most immature person I've ever met in my life".

The pair starred in 'Breaking Bad' together and they have been firm friends ever since, but Aaron has admitted the Walter White actor used to play a lot of pranks onset and managed to convince him his character Jesse Pinkman had been killed off early.

During an appearance on the 'Hot Ones' YouTube series, Aaron said: "He's the hardest worker in the room, the most lovable - I mean, he's my best friend, my son's godfather, I adore him, I spoke to him for an hour on the phone last night.

"I really am obsessed with the guy, but he's also the most immature person I've ever met in my life, and I say that with just lov...