
Person
Aidan O'Callaghan
Acting
Biography
Aidan O'Callaghan is an accomplished actor recognized for his compelling performances across television, film, and theatre. His role as Kareg in The Witcher: Blood Origin (Netflix) marked a significant milestone in his career, placing him within the expansive and beloved Witcher franchise. This Netflix prequel, which features an ensemble cast including Michelle Yeoh and Jodie Turner-Smith, has captivated audiences worldwide, amassing over 30 million views since its release. In addition to The Witcher, Aidan has showcased his versatility in various projects, including notable international television series such as The Rook (Starz) and Wolfe (Sky). His film credits include the BAFTA and Oscar contender A Simple Killing (2024) and Somatic (2016), where he took on complex roles that demonstrate his range as an actor. While his early recognition came from his time on EastEnders and Emerdale, it is his dynamic performances and dedication to his craft that continue to resonate with audiences. With a growing reputation for tackling diverse characters, Aidan O'Callaghan is poised for an exciting future in the entertainment industry, captivating viewers with each new role he takes on.
Known for

EastEnders
Lewis Butler

Emmerdale
Mike

The Witcher: Blood Origin
Kareg

The Rook
Alan

Wolfe
Jake
Creep House
Alberto
The Reckoning of Erin Morrigan
Col

A Simple Killing
Terry

Housewarming
Associate Producer
Filmography
- 2025The Reckoning of Erin MorriganCol
- 2024HousewarmingAssociate Producer
- 2024A Simple KillingTerry
- 2022The Witcher: Blood OriginKareg
- 2021WolfeJake
- 2019The RookAlan
- 2014Creep HouseAlberto
- 1985EastEndersLewis Butler
- 1972EmmerdaleMike
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