Former Bond girl and The Avengers star Honor Blackman is to make a guest appearance in this Saturday's opening episode of the new series of Casualty on BBC One.

The 87-year-old, who played Pussy Galore in Goldfinger and Catherine Gale in The Avengers, will play a pensioner who is brought to hospital after being hit by a cyclist and reveals details of her very adventurous life.

The opening episode will also see the introduction of a new trainee doctor, Lily Chao (Crystal Yu), while a new nurse, Rita Freeman (Chloe Howman), will make her debut in the second episode.

The show's Executive Producer, Oliver Kent, said: "We've had a long history of famous guest appearances, but never a Bond girl. Honor plays a fantastically witty and charming character on a mission. Meanwhile, our two new regular characters, Lily and Rita, hit the ground running and are set to create a stir in the ED [Emergency Department]."

Casualty is on BBC One on Saturday August 3 at 9:10pm.