James Callis teases Claude’s uncertain future in Slow Horses season 6: ‘The jury’s out’

Warning: Spoilers follow for Slow Horses season 5.

Being the head of M15 isn't a post that someone can hold onto for very long – at least that's what the ending of Slow Horses season 5 has proven.

Claude Whelan was forced out of the job of first desk at the end of the fifth season's finale episode after a series of mishaps during the handling of several terrorist attacks, becoming the second boss to leave the role after Ingrid Tearney resigned at the end of season 3.

Claude’s dramatic ending in Slow Horses season 5 ...