The Walk-In Forced to flee the UK and go into hiding in the 1990’s when he became a mole from within the BNP, Matthew Collins returned to Britain to make a new life for himself. As Collins works with young white men in the fight against radicalisation. Details Casts Videos Galleries Posters Season Lists Title The Walk-In Genres Drama Crime First Air Date 2022-10-03 Last Air Date 2022-10-31 Episode Runtime 00 Hours 46 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 5 Runtime 46 Production Companies ITV Studios, ITV Stephen Graham... Matthew Collins... Jason Flemyng... Nick... Leanne Best... Alison... Andrew Ellis... Robbie... Chris Coghill... Chris... Dean-Charles Chapman... Jack... Sami Amber... Billy... The Walk-In trailer (Trailer) Original Size (1920x1080) Original Size (3840x2160) Original Size (1920x1080) Original Size (1920x1080) Original Size (1320x743) Original Size (3840x2160) Original Size (1920x1080) Original Size (1920x1080) Original Size (680x1000) Original Size (564x845) Original Size (720x1080) Original Size (720x1080) Season 1 5 Episode(s) 2022-10-03