David Walliams has likened his colleague Simon Cowell to a James Bond villain.

The actor and comedian decided to poke fun at his fellow 'Britain's Got Talent' judge as he joked about how Simon looked like a bad guy from the films based on Ian Fleming's novels.

Lara Stone and David Walliams

Talking to The Sun newspaper, David laughed: "Simon would have to be the Bond villain - instead of stroking a Persian cat on his lap, he would have Louis Walsh."

However, he then quickly added: "Actually Simon is lovely. He is a professional."

The funny man also had fun looking back at the strangest acts they've had audition for 'BGT', as he remembered one eccentric man who arrived on stage dressed as a character from David's children's book, 'Ratburger'.

He shared: "One BGT contestant formed the basis of the Bert character in my 'Ratburger' book who makes burgers out of rats.

"He came on stage with dyed black hair, sunglasses and false teeth. Simon Cowell said: 'What's your act?' and he got out a paper bag and said, 'I eat live cockroaches.'"

The father of one also admitted that one of his favourite things to do is to read with his 16-month-old son, Alfred with his wife Lara Stone.

He told the newspaper: "Reading shouldn't be a chore. It's a lovely connection you can have with your children, both painting the picture in your heads."