Jonathan David Korkes, a versatile American actor whose career spanned over five decades across film, stage, and television, passed away on December 31, 2025, in New York at the age of 80. Born in New York and raised in Marblehead, Massachusetts, Korkes left an indelible mark on the acting world, known for his compelling performances and his dedication to the craft as an esteemed educator.

Korkes began his professional journey in 1968 with an off-Broadway role in Jules Feiffer's "Little Murders," directed by Alan Arkin, a collaboration he would reprise in the 1971 film adaptation. His early career quickly gained momentum, leading to his film debut in "The Out-of-Towners" in 1970 and a memorable portrayal of Snowden in Mike Nichols' iconic war satire "Catch-22" the same year.

Throughout the 1970s, Korkes built a robust resume, appearing in notable films such as "The Day of the Dolphin" (1973) and Billy Wilder's "The Front Page" (1974). His talent was recognized early on when Walter Kerr cited him as one of the most promising actors of the 1971 Broadway season for his work in Philip Roth's "Unlikely Heroes."

Later in his career, Korkes gained widespread recognition for his recurring role as corrections officer Tom Robinson in the critically acclaimed HBO drama "Oz," appearing in six episodes from 2001 to 2003. Beyond his acting, he was a passionate teacher, sharing his extensive experience with aspiring performers at the Stella Adler Studio of Acting in New York from 2008 until November 2025, and also conducting master classes internationally.

Jon Korkes' legacy is not only found in his diverse filmography and stage performances but also in the countless students he inspired and mentored. His commitment to the art of acting, both as a practitioner and an educator, will be deeply missed by his colleagues, students, and audiences worldwide.