Happy Valley star Rhys Connah says he cringed when he watched back his "annoying" performance in early episodes.
The actor, 16, has been Ryan in the BBC drama since he was eight and revisited it as preparation for shooting the third and final series.
Recalling his preparation for the third and final series of the multi-BAFTA winning series, Rhys said he rewatched the show from start to finish in order to gain a full understanding of the storylines and characters but said he was flawed by his "squeaky voice" as a youngster.
