Question: Who played hook in once upon a time?
Disambiguated questions and answers: question: Who played adult hook in once upon a time?
Who played hook as young killian jones in once upon a time?
answer: O'Donoghue
Colin O'Donoghue
Oliver Bell
Bell
Natural Questions answer: Colin Arthur O'Donoghue (from the Wikipedia article "Colin O'Donoghue")