The Secret Intelligence Service (SIS or MI6) is the British equivalent of the American CIA. Throughout Chuck, it is commonly referred to by its unofficial previous title; "MI6", often used by the mass media, although files and documents provided by them feature the SIS logo prominently.
The SIS is one of the oldest intelligence agencies in the world, having existed in one form or another since 1909, and it works in tandem with the domestic MI5 and GCHQ as part of the United Kingdom's "Joint Intelligence Committee ". The SIS Headquarters are in Vauxhall, London, on the banks of the River Thames, as highlighted in the 2012 James Bond film Skyfall.
In the Chuck universe Edit
- MI6 Agents - seen in "Chuck Versus the Tango".
- Cole Barker is an SIS agent (and Bond 'clone') who appears in "Chuck Versus the Beefcake" and "Chuck Versus the Lethal Weapon", who had retrieved a Fulcrum data chip. He works with the team, after they capture him thinking he's a Fulcrum agent, to find the playback device which would enable the CIA and the SIS to read the Fulcrum data chip.
- Hartley Winterbottom, aka Alexei Volkoff, worked as a scientist for MI6, prior to becoming the first human Intersect.