Ronan is best known for his leading roles in Starz series THE ROOK, and in Peter Jackson’s epic MORTAL ENGINES. He can also be seen in THE TERROR (AMC/BBC), FANTASTIC BEASTS AND WHERE TO FIND THEM directed by David Yates, DEATH OF A SUPERHERO, MOONE BOY (BBC), CROSSING LINES (NBC), FRESH MEAT (C4), and most recently the second season of GANGS OF LONDON (Sky). He can currently be seen leading OBITUARY (Hulu).
Ronan has worked extensively in theatre, including THE REAL THING on Broadway opposite Maggie Gyllenhal. He was most recently seen at the Hampstead Theatre leading Tom Morton Smith’s new play RAVENS: SPASSKY VS FISCHER.