In 2005 Montserrat appeared in an advert for the MINT Credit Card. Her character had a boyfriend who kept sneezing on everyone in a restaurant.
In 2003 Montserrat played the characters of Daisy/Louise/Sharon in People Who Don't Do Dinner Parties for Morpheus Productions.
Montserrat can speak American-New York, American-Southern States, American-Standard, Cockney, East European, Italian, Lancashire, Liverpool, London, Manchester and Spanish accents.
Montserrat's father, Jesus Lopez, is a Spanish painter and pianist
Montserrat: (on if she listened to 80's music to get into the role of Shaz Granger): Yes, I did at first. But I find it very difficult to get into…When you see it all together it totally works, but it did really drain me when I first started hearing it. I thought, 'Oh my God!' It was a bit of a shock! I watched some stuff on YouTube about the Blitz Club, which was great.
Montserrat: (On her Ashes To Ashes character Shaz Granger): She's a good Catholic girl - but a New Romantic at night! She's very strong, but can be quite silent at work – she knows she has to be as there are a lot of boys around. But she can be very opinionated.