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Are Cillian Murphy & Billie Eilish Related?

Author

Matthew Elliott

Updated on January 05, 2026

Cillian Murphy is a professional actor from the Island of Ireland. Cillian Murphy was the lead singer, guitarist, and lyricist for the rock band The Sons of Mr Green Genes until he turned down a record deal in the late 1990s and started acting on stage and in short and independent films.

Since then, Cillian Murphy quickly became one of Hollywood’s most sought-after actors in the early 2000s.

Are Cillian Murphy and; Billie Eilish Related?

There is no link between Billie Eilish and Cillian Murphy. Their biographies contain no evidence of shared family history.

Cillian Murphy is well-known for being the lead actor in some of the most successful movies in the entire movie industry across the Globe. Cillian Murphy made appearances in ‘The Dark Knight Trilogy’ where he portrayed the scarecrow, ‘Inception’, ‘Dunkirk’, ‘In Time’ and many others.

Of all the movies he has featured in, it was Cillian Murphy’s triumphant performance as Thomas Shelby in the BBC crime series, Peaky Blinders that earned him worldwide acclaim and fame.