Line of Duty cast - then and now
Martin Compston, who plays Steve Arnott, looks much the same but for his beard...
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Most of them would still have been playing bent coppers and robbers back then...
These youngsters grew up into our favourite Line of Duty stars – and some could easily be picked out of a police lineup.
Martin Compston, who plays Steve Arnott, looks much the same but for his beard.