Nigel Boyle is no stranger to our TV screens, having starred in Small Axe, The End of the F***ing World, Doctors, and Silent Witness, with credits in Peaky Blinders, Home Fires, Humans, and Coronation Street as well.
He's also no stranger to Line of Duty, having appeared in series one and four. We first met him as a DI working on the Jackie Laverty case, and then again as a DCI who took over Roz Huntley's and worked with Kate whilst she was undercover. Now, in series six, he's a detective superintendent, over seeing the MIT on The Hill.
Image Source: BBC Pictures