Complex sentence: Raymond Doyle (Martin Shaw) (born c.1949) was a former detective constable, who originated in Derby but later lived in an unspecified "city" with parallels to Birmingham, was working the seedier parts of east London when recruited into CI5.
Split into simpler sentences: Raymond Doyle (Martin Shaw) (born c.1949), a former police detective constable, who originated in Derby but later lived in an unspecified "city" with parallels to Birmingham. He was working the seedier parts of east London when recruited into CI5.