Brains is a fictional character introduced in the British mid-1960s Supermarionation television series Thunderbirds, who also appears in the sequel films Thunderbirds Are Go (1966) and Thunderbird 6 (1968) and the 2004 live-action adaptation Thunderbirds. The puppet character was voiced by David Graham in the TV series and the first two films, while Anthony Edwards played the role for the live-action film. Brains is voiced by Kayvan Novak in the CGI remake series Thunderbirds Are Go, which aired in 2015.