Have you ever argued over whether Ripley is better at battling aliens than Captain Scarlet, or wondered if Kryten could be outsmarted by C-3PO? Hero or heroine? Monster or machine? Sci-fi experts, writers, directors and famous fans from across the galaxy are nominating their contenders for the Greatest Sci-Fi Characters of All Time and now the BFI wants your views.

From the heroic adventures of Flash Gordon and the motley crew of Serenity, to the time-travelling journeys of Dr Who and the supermarionation magic of the Thunderbirds, the sci-fi genre is known for introducing us to some of the most original and memorable characters ever seen on screen. To mark the BFI’s SCI-FI: DAYS OF FEAR AND WONDER blockbuster project, presented together with 02, we are on the hunt for the nation’s favourite sci-fi characters. Spanning the worlds of both film and television this face-off puts the power in your hands and offers you the chance to see your favourite character named the Greatest Sci-Fi Character of All Time.

Casting your vote could not be easier. Simply head over to http://www.bfi.org.uk/sci-fi/greatest-sci-fi-characters-all-time and choose your top three sci-fi characters and top three sci-fi films or TV shows to ensure they make the shortlist. The shortlist will be announced later this month, marking the final countdown to SCI-FI: DAYS OF FEAR AND WONDER, a project that will bring forth the largest collection of sci-fi film and television ever presented in the UK, including the release of classic Sci-Fi titles into UK cinemas and on DVD and Blu-ray, over fifty films being made available online through BFI Player and a season of sci-fi film and events held at the BFI Southbank and over 200 venues across the UK

Cruising steadily at warp speed with our phasers set to stun, help us crown a victor in this ultimate sci-fi showdown… you’re our only hope.