Line of Duty. The 38-year-old sent fans into meltdown as he shared a cryptic post to Instagram on Tuesday of himself with Adrian Dunbar, Vicky McClure and series writer Jed Mercurio.Martin captioned the image: "Talking tattoo designs," with a red heart emoji.Last year, the stars agreed to get AC-12 tattoos if the BBC show reached a milestone of 12million views.Many of Martin's fans believe his post means a new series of Line of Duty could now be in the pipeline.One fan commented: "Series 7, here we come."Another said: "Mother of God let's hope another series."One person wrote: "Tattoo better say 'LoD season 7'," while another said: "Oh my word!!
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