7) Jon-Erik Hexum

Jon Erik Hexum showcased immense talent as an actor in TV shows such as Voyagers and Cover Up. However, he met an unfortunate end on the latter show's set. It is said that Hexum was feeling restless during a prolonged pause in filming and playfully interacted with a prop gun.
But he did not realize that even blanks possess potential harm when used in close proximity. So, when he jokingly positioned the firearm against his temple and pulled the trigger, as a consequence of this ill-fated choice, Hexum endured a deadly fracture to his skull caused by the blank cartridges' forceful impact. This tragic incident is an indelible reminder to celebs and the film industry regarding safety precautions and responsible handling of props within movie sets.
8) Red Foxx

Redd Foxx, also known by his birth name John Elroy Sanford, gained widespread recognition as an exceptional comedian and actor. He achieved great acclaim for his portrayal of Fred Sanford in the beloved sitcom Sanford and Son.
On October 11, 1991, while Foxx was working on his CBS television series The Royal Family during a rehearsal scene on set, he suddenly collapse. However, it was initially mistaken as one of Foxx's characteristic pranks due to his playful nature.
Regrettably, it soon became evident that he was experiencing severe illness. and was transported to the hospital after suffering from a heart attack, after which efforts were made to save him, but they ended in tragedy as he did not survive.
9) Roy Kinnear

British actor Roy Kinnear was among those celebs who were acclaimed for amiable yet occasionally disquieting roles in movies. Kinnear was a familiar face in British households during the early 1960s. He also held a prominent role as an original cast member of the television series That Was the Week That Was.
During the filming of The Return of the Musketeers in 1989, he suffered a devastating fall from a horse that resulted in a broken pelvis. Following this, he soon succumbed to a heart attack induced by these injuries the next day while in hospital. His premature passing dealt a profound blow to the film industry and created an irreplaceable void within the realm of acting.