ABC cancelled the series after only airing 2 episodes, out of 8.
The Assets is based on the book Circle of Treason
Despite most of the characters being American or Russian, very few of the cast are actually of those nationalities.
Both Jodie Whittaker and Noel Clarke have starred in Doctor Who (2005), as The Thirteenth Doctor and Mickey Smith, respectively. However, they did not star in the same series.