Model Georgia Salpa, Reservoir Dogs star Michael Madsen, former EastEnders star Natalie Cassidy and one-time X Factor contestant Frankie Cocozza are among the housemates in the new series of the Brian Dowling-presented Celebrity Big Brother, which began on Channel 5 on Thursday night.

Also appearing in this year's show are Loose Women presenter Denise Welch, rugby player Gareth Thomas, singer Andrew Stone, models and twins Kristina and Karissa Shannon, former So Solid Crew star Romeo Dunn, model Nicola McLean, The Only Way Is Essex star Kirk Norcross and Ryan Giggs' sister-in-law Natasha Giggs.

Cassidy was given a secret task to perform as the show began and had to wear a hidden earpiece and follow orders, including kissing Cocozza on the lips and telling him: "I do find younger men really attractive."

Dowling said of the new series: "Big Brother is still relevant and it remains the original reality television show. What you see on Big Brother is real, the situations are real, the drama is real and that's why people still want to watch.

"I want Big Brother to get tougher with them this year, the celebs had it way too easy last year."