You have a personal connection with Anna and her husband, Stephen Moyer, don't you?
Yes, they're very close friends of mine. I'm godfather to one of their children. Stephen called me a month before this shoot and, "Are you available?" I was sent the script and thought it was great. I'm not usually a great reader, but I read all six episodes of Flack. The script was brilliant.
What did you particularly like about it?
It's funny, insightful, clever and it has terrific characters. It has incredible one-liners. In a script this good, nothing jars. Oliver is obviously a very clever guy and a real all-round talent. He's a superb actor, too - he was fantastic as Kenny Everett in the drama about his life.
Did you instantly "get" the role of Tom?
Definitely. I could immediately see Tom very clearly. They'd obviously had me in mind when they created the role. It was obvious it wasn't going to be a million miles away from me!
Talk us though the character of Tom.
He's a nice guy, but he has lived a bit and been around the block a few times. He's a recovering addict. Eve goes on a blind date with him, and there's quite a weird dynamic between them.
How would you characterise Tom's relationship with Robyn?
There is a vibe between them. They met in recovery, so it would be quite frowned upon if they went out. You're there to recover from addiction; it's not supposed to be somewhere to meet a partner. But there's no denying that they are attracted to each other because they're both damaged.
Some of the things Robyn is forced to do in her work are pretty questionable, aren't they?
Yes. It's an ambiguous world, but that's what makes it so dramatically intriguing. The audience will be on Robyn's side because there's something so endearing about Anna as an actress. But she still does some quite contentious things.
In quite a coup, the producers of Flack have cast Bradley Whitford from The West Wing as a guest star. You know him, don't you?
Yes. I worked with him on Burn Up. Whenever I had scenes with him, I learnt my lines so well. I knew I'd be nervous and I was determined to be on it. But it was such a joy acting with him. Bradley is everything you'd expect. He's also super bright. Like all great actors, he's like a dancer, riffing with complete grace.
Have you enjoyed working with this largely female cast?
Absolutely. In the past, I've been in dramas like Mad Dogs with lots of good parts for men. But this is the women's vehicle. They're amazing. They're so gifted and offer an incredible range. They cover so many different angles.
How have you found it working with Anna?
She's great. She's really, really talented and different. She's got an incredible amount of experience for someone of her relatively young age. It's tremendous acting with her. You always know when you're working with someone really good like Anna. You look into her eyes and the connection is coming back at you. You bump up each other's game. It's been an absolute pleasure working with her.