Slow Horses season 6 has already wrapped filming – here's everything we know so far about the gritty spy drama's return to ...

Smith (who technically serves as showrunner, although that title does not exist in U.K. productions), set the tone and kept ...

British novelist Mick Herron, the author of the Slough House espionage series, poses for photographs outside his home in Oxford, England, Wednesday, Jan. 27, 2021.

Slow Horses is a British spy thriller TV series based on the Slough House series of novels by Mick Herron. Will Smith produced this show.

Mick Herron, the author of the ‘Slow Horses’ series, is the unlikeliest star in publishing. Even he couldn’t have made this up.

British novelist Mick Herron, the author of the Slough House espionage series, poses for photographs outside his home in Oxford, England, Wednesday, Jan. 27, 2021.

British novelist Mick Herron, the author of the Slough House espionage series, poses for photographs outside his home in Oxford, England, Wednesday, Jan. 27, 2021. (Photo credit AP Photo/Matt Dunham) ...

The new Apple Original show brings Mick Herron’s book to vivid life and delivers a British spy story but with a twist. "These are the screwups," "Slow Horses" director James Hawes said.

British novelist Mick Herron, the author of the Slough House espionage series, poses for photographs outside his home in Oxford, England, Wednesday, Jan. 27, 2021.

LONDON (AP) — Like a spy in the night, writer Mick Herron’s success has been stealthy. It took a while for the world to catch up with him. A decade after he introduced a crew of flawed secret ...