Ahoy, Hook’s father! Once Upon a Time has cast Adam Croasdell as Killian Jones’ father for an upcoming episode in season 5.

The Captain’s journey is about to get more interesting in Once Upon a Time season 5! EW announced that Adam Croasdell will make his way to the series to play Hook’s father for a flashback episode that will focus on Hook’s younger years before he became the revered Captain of the Jolly Roger. Croasdell is best known for his appearances on EastEnders and as Baldur in Supernatural.

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Very little of Hook’s canon has seen the light on Once Upon a Time. The furthest back we’ve gone is to the time Killian set off on a journey with his brother Liam Jones. On a secret mission from the King to harvest a plant called dream shade from the mythical Neverland. Without a full understanding of magic and the cost of putting his trust in Pan, Killian and Liam return to England where the healing magic that once saved Liam in Neverland led to his death back in the world without magic. This is how the Captain went from Lieutenant serving the King to a Captain ruling the seas.

Flashbacks that focus on a specific character often reveal important pieces of their past that influences their actions in the present.

What lurks in Hook’s past that will be an important part of his future? You’ll have to wait and see! This was only one of several announcements to come out of New York Comic Con last week. Get the full scoop in our Once Upon a Time Comic Con roundup here!

Watch Once Upon a Time season 5, episode 4, “The Broken Kingdom,” Sunday, October 18 at 8:00 p.m. ET on ABC.