As a nifty tie-in to the show's debut, this week's Friday Fiver is celebrating the greatest secret agents to grace the small screen - today may be Global James Bond Day but TV has had its fair share of iconic spies too!
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Tom Quinn (Matthew Macfadyen) from Spooks
The BBC's last stab at a spy thriller introduced plenty of memorable spies across its ten-series run, but we always had a soft spot for original spook Tom, played with brooding intensity by the velvet-voiced Macfadyen. Adam Carter (Rupert Penry-Jones) and Lucas North (Richard Armitage) both had a decent go at being MI5's top dog, but they couldn't eclipse the amazing Mr Quinn.
Napoleon Solo (Robert Vaughn) from The Man From U.N.C.L.E.
In addition to creating the mighty 007, author Ian Fleming also devised the character of Solo - played with style by The Magnificent Seven's Vaughn - for this Bond-inspired '60s series. The chilled and charming secret agent was well-matched by his intense Russian partner Illya Kuryakin (David McCallum), with the pair enjoying 105 exciting adventures in total.
Sydney Bristow (Jennifer Garner) from Alias
Easily a match for her male counterparts, Sydney was a tough and effective agent, easily holding her own in a fight and speaking a bazillion different foreign languages. Alias - which also featured Hunted's Melissa George - helped launch Jennifer Garner as a superstar and series creator JJ Abrams didn't do too badly out of the show either.
Jack Bauer (Kiefer Sutherland) from 24
Alright, so special agent Bauer didn't do that much actual spying - there wasn't much in the way of covert operations in 24. But Jack had his own way of getting to the truth - generally it involved yelling at a no-good terrorist till they revealed the location of the bomb / the virus / the nerve gas / his missing daughter, and it was enormous fun to watch for the eight years that the show was on the air.
John Steed (Patrick Macnee) in The Avengers
This classic '60s show may have boasted some truly memorable leading ladies, but Eton-educated, bowler-hat wearing gentleman spy Steed was the one constant. Originally envisioned as a supporting role, the character of John Steed became central to the series when original lead Dr David Keel (Ian Hendry) was written out... and the rest is TV history.
Who are your favourite TV spies and secret agents? Share your picks below!