Courteney's best pal and former co-star Jennifer Aniston is rumoured to be making another appearance in the show

The 43-year-old mother of one says her character Lucy Spiller came as a welcome change, saying: "I was on Friends for 10 years and (Monica) was a very high-energy, obsessive-compulsive character.

"To play someone who is a lot more solid and less emotional was something that was fun and challenging.

"It's more challenging to find ways to make her, you know, keep her the person you love to hate."

The second series hits US television screens in March and is expected to air in the UK later this year.