Gillian Anderson enjoys picking on Jamie Dornan.

The 'Fall' actress says her co-star is ''very easy to make fun of'' because he doesn't take himself too seriously and they have great relationship on the set of the drama.

Asked about the 32-year-old actor, she said: ''Well, it's funny because I pick on him a lot.''

Gillian is particularly amused by Jamie's soaring status as a sex symbol ahead of the release of his upcoming movie 'Fifty Shades of Grey'.

The 46-year-old beauty said: ''He's very easy to make fun of and he takes the p**s out of himself and he is very free at taking the p**s out of everybody else. So it's quite a joy to be able to reciprocate, especially on that subject matter. We have a lot of fun with it.''

The former 'X-Files' star also credits her three children, Piper, 20, Oscar, eight, and Felix, six, for helping her to unwind after shooting dark scenes for the series.

She told E! News: ''Just even to go from the set into my trailer where I had a child that I suddenly needed to be mommy to, that in itself taught me pretty quickly how to compartmentalise. I don't find it that hard with anything, not just the dark stuff.

''My experience is you just do, that's work and that's home and they have their place. I've never found --knock wood, now I'm going to have the complete opposite experience where I'm going to be haunted every night by what I do from now on -- but I don't find it such a big deal.''