[Maigret Sets a Trap] was always going to be the first film, and it seemed to be quite a nice story. But of course it meant that here I was playing this new character for the first time, in a place where he had been a relative failure, as all these people had been murdered and the pressure was on. Rather than starting optimistically with his pipe in front of the fireplace, he was in quite a difficult place.

The problem with Maigret is he hasn't got a limp, and he hasn't got a lisp, and he hasn't got a French accent, or a particular love of opera... or all those other things that people tend to attach to many fictional detectives. He's just an ordinary guy doing an extraordinary job, in a very interesting time.

People think because I can make them laugh on the stage, I'll be able to make them laugh in person. That isn't the case at all. I am essentially a rather quiet, dull person who just happens to be a performer.

I suddenly think the job of acting is a difficult one. It's not as flip, irrelevant and shallow a calling as I thought it was in the Eighties.

The character [Maigret] is bound to change and develop, and I wouldn't like to claim that we are perfectly formed straight out of the box. I think it's what I'd call an 'optimistic start'. As you know, for me, no glass is anything other than half empty, so I apologise for my reticence in terms of promoting this programme.

I think you're bound to get a sense of any character that you play. It's not something you often do in comedy.

I don't really have plans like that [move towards more dramatic acting].