Michelle Dockery has got more confident since 'Downton Abbey' began.

The 32-year-old actress has portrayed Lady Mary Crawley in the period drama since its inception in 2010, and she can see a lot of parallels between herself and her alter ego.

She said: ''It [Lady Mary's confidence] was a brashness that came from insecurity, whereas now it's different, she's very confident in her own skin, and I guess that's the parallel, really, with my own life.

''I feel like I've reached a point now where I'm much more content and confident.''

Michelle says it has been ''lovely'' to return to the show for a fifth season, and admits she and her co-stars are always amused when they look back at publicity around the early episodes.

She told the August edition of Britain's Harper's Bazaar magazine: ''There's a sense of nostalgia this year because we're that much further on.

''And some pictures from the first series make us go, 'Oh my God! We were so young.' We've all grown up together in a lot of ways. It's a lovely thing, really.''

Michelle recently vowed to stay with the show until it ends.

Quizzed about speculation she might quit, she said: ''It amuses me more than anything, because it's all speculation, and I think it's down to fact the show has such a popularity. But no, I'm here till the end, whenever that may be.''