Happy Valley fans were thrilled when series three burst back onto our screens after a huge seven year gap.
The gritty BBC drama follows Sergeant Catherine Cawood (Sarah Lancashire) on the trail of murderer and sex offender Tommy Lee Royce (James Norton). While the second series saw Ryan, the biological son of Tommy and Catherine's late daughter Becky, just nine years old, he is now 16.
Bosses have explained the long gap was necessary for Ryan actor Rhys Connah to be old enough to play a young adult. This is because he needed to have more of a say in whether or not he visited his father in prison.