Karel Heřmánek (17 October 1947 – 24 August 2024) was a Czech actor. He appeared in more than forty films between 1976 and 2008, including the role of Lucifer in 1984's S čerty nejsou žerty (Give the Devil His Due).
Heřmánek died on 24 August 2024, at the age of 76, by suicide by a gunshot at the shooting range in Příbram. During the previous spring, he had been suffering from trigeminal neuralgia, which causes episodes of paralysis and excruciating pain, and has depression as a complication.