"Ricochet" is the 31st episode of Thunderbirds, a British Supermarionation television series created by Gerry and Sylvia Anderson and filmed by their production company AP Films (APF; later Century 21 Productions) for ITC Entertainment. Written by Tony Barwick and directed by Brian Burgess, it was first broadcast on 6 November 1966 on ATV London and Anglia Television as the fifth episode of Series Two. It had its first UK-wide network transmission on 15 May 1992 on BBC2.