John Heffernan is a British actor. He has worked with the the Royal Shakespeare Company (RSC), the National Theatre, and the English Touring Theatre. He has appeared in films and television shows.

• The Sting (1973)

  
• Brexit: The Uncivil War (2019)

  
• A Ghost Story for Christmas: Lot No. 249 (2023)

  
• The Banishing (2021)

  
• Puzzle of a Downfall Child (1970)