British actor Rowan Atkinson fears the end is in sight for his beloved comedy creation Mr. Bean as playing him has become "childish and sad".

Atkinson's famously bumbling character debuted on British television in 1990, with the Mr. Bean show running for five years and spawning two successful movies and a cartoon spin off.

Mr. Bean made his most recent appearance at the Opening Ceremony of London's Olympic Games over the summer (12), but Atkinson, 57, now wants to concentrate on more serious acting roles.

He tells British newspaper the Daily Telegraph, "The stuff that has been most commercially successful for me - basically quite physical, quite childish - I increasingly feel I'm going to do a lot less of. Apart from the fact that your physical ability starts to decline, I also think someone in their 50s being childlike becomes a little sad. You've got to be careful."