John Zderko, Actor in ‘Criminal Minds’ and ‘The Mentalist,’ Passed Away At 60

Late-blooming actor John Zderko, who appeared in shows including Criminal Minds, The Mentalist, 9-1-1: Lone Star, and Bosch: Legacy, has died. He had reached the age of 60.

Charley Koontz (Community, CSI: Cyber) confirmed to The Hollywood Reporter that Zderko passed away on Thursday in Los Angeles as a result of complications from his cancer treatment.

Zderko appeared in the Bleeker Street release Breaking, which premiered at the Sundance Film Festival and featured John Boyega and the late Michael K. Williams.

On Thursday, Zderko’s friend and fellow actor Charley Koontz (Community, CSI: Cyber) confirmed that the actor had died as a result of complications from his cancer treatment, according to reports.

Zderko played alongside John Boyega and the late Michael K. Williams in Bleeker Street’s Breaking, which had its world premiere at the Sundance Film Festival this year.

As a high school basketball player, Zderko shared the court with James Gandolfini at Park Ridge High School in New Jersey, where he grew up in Ohio, Colorado, and New Jersey.

John Zderko
John Zderko

The businessman Zderko went on to build a successful career after graduating from the University of California, Irvine, while also studying acting at the University of California, Los Angeles. With the help of writer/director Dianne Name, he initially gained experience as an actor on stage at the West of Broadway in Santa Monica. In 2005, he made his movie debut.

Apparitional (also known as Haunting of Cellblock 11) is a 2014 horror film in which Zderko, a guy who is attacked by a ghost and who later takes over his body, is the star.

His sister, Karen, brother-in-law, Steve, and nephews, Jason and Jeff, are the only surviving members of the family.

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