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Entertainment • Actor

Katie McGrath

Katie McGrath is an Irish actress known for television roles including Morgana Pendragon in *Merlin* and Lena Luthor in *Supergirl*.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Katie McGrath is an Irish actress known for television roles including Morgana Pendragon in *Merlin* and Lena Luthor in *Supergirl*. She has also appeared in series such as *Dracula* and *Slasher*, and in films including *Jurassic World* and *King Arthur: Legend of the Sword*.

Early life and education

McGrath was born in Ashford, County Wicklow, Ireland, and studied history at Trinity College Dublin. Before acting, she worked in fashion journalism and in production-related roles.

Acting career

She first became widely known for playing Morgana Pendragon in *Merlin*. She later appeared in *Dracula*, *Slasher*, and *Supergirl*, expanding her profile in fantasy, horror, and superhero television.

Film roles

McGrath has appeared in several films, including *W.E.*, *A Princess for Christmas*, *Jurassic World*, and *King Arthur: Legend of the Sword*. These roles helped establish her in both television and film.

Key facts

  • She was born in Ashford, County Wicklow, Ireland.
  • She gained wide recognition as Morgana Pendragon in the BBC series *Merlin*.
  • She played Lena Luthor in the superhero series *Supergirl*.
  • Her film credits include *W.E.*, *Jurassic World*, and *King Arthur: Legend of the Sword*.
  • She studied history at Trinity College Dublin before pursuing acting.
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Canadian context

McGrath appeared in the Canadian horror anthology series *Slasher* and is familiar to Canadian viewers through internationally distributed television and film roles.

Frequently asked questions

Who is Katie McGrath?
Katie McGrath is an Irish actress best known for her television roles in *Merlin* and *Supergirl*.
What is Katie McGrath’s full name?
Her full name is Katherine Elizabeth McGrath.
Where was Katie McGrath born?
She was born in Ashford, County Wicklow, Ireland.
What is Katie McGrath known for?
She is known for playing Morgana Pendragon in *Merlin* and Lena Luthor in *Supergirl*.
What did Katie McGrath study?
She studied history at Trinity College Dublin.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Katie_McGrath
    Supports: Birthplace, nationality, occupation, years active, and major television roles.
  2. Wikipedia — https://es.wikipedia.org/wiki/Katie_McGrath
    Supports: Birthplace, education at Trinity College Dublin, and early career in fashion journalism.
  3. Apple TV — https://tv.apple.com/us/person/katie-mcgrath/umc.cpc.4qzy971dk8rkzdqi5acyjj4dy
    Supports: Education, early career, and television and film credits including *The Tudors*, *Merlin*, *Dracula*, *Jurassic World*, and *Supergirl*.
  4. TMDb — https://www.themoviedb.org/person/150587-katie-mcgrath?language=en-US
    Supports: Birth date, birthplace, and selected film and television credits.