Ralph Michael Ineson (/ˈaɪnsən/; born 15 December 1969) is an English actor and narrator. Standing 6 feet 3 inches tall, with a characteristically deep voice and Yorkshire accent, he often plays authoritative figures.

Among Ineson's notable film roles are Amycus Carrow in the last three Harry Potter films (2009–2011), William in The Witch (2015), the title character in The Green Knight (2021), Dr. Wilhelm Sievers in Nosferatu (2024), and Galactus in The Fantastic Four: First Steps (2025). His notable television roles include Chris Finch in The Office (2001), Dagmer Cleftjaw in Game of Thrones (2012), and Nikolai Tarakanov in Chernobyl (2019). His video game voice work includes Charles Vane in Assassin's Creed IV: Black Flag (2013), Lorath Nahr in Diablo IV (2023), and Cid in Final Fantasy XVI (2023).

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