British actor Alfie Allen, known for his role in Game of Thrones as Theon Greyjoy, had a complicated relationship with his on-screen parents. In real life, Alfie shares a close bond with his three sisters, one of whom is the popular singer Lily Allen. 

Alfie is not only an uncle to Lily's daughters but also a father to his own daughter, Arrow, whom he shares with his ex-girlfriend. He often shares heartwarming posts celebrating his daughter and the special bond they share. Additionally, Alfie was nominated for an Emmy Award for his portrayal of Theon Greyjoy in Game of Thrones, a moment his sister Lily was extremely proud of, showcasing their supportive sibling relationship.

During his time on the set of Game of Thrones, Alfie and his co-stars, Kit Harington and Richard Madden, had a "macho vibe," often comparing their physical shapes. Despite the friendly competition, Alfie made lasting friendships with his fellow actors and even shared amusing anecdotes about pranks played by the show's creators during filming.

In 2022, Alfie made his Broadway debut, showcasing his talent on a different stage. Despite initial nervousness during rehearsals, Alfie's performance was well-received, earning him a Tony award nomination.