Walter Marvin Koenig (born September 14, 1936) is an American actor and screenwriter. He began acting professionally in the mid-1960s and quickly rose to prominence for his supporting role as Ensign Pavel Chekov in Star Trek: The Original Series (1967–1969). He went on to reprise this role in all six original-cast Star Trek films, and later voiced President Anton Chekov in Star Trek: Picard (2023). He has also acted in several other series and films including Goodbye, Raggedy Ann (1971), The Questor Tapes (1974), and Babylon 5 (1993). In addition to his acting career, Koenig has made a career in writing as well and is known for working on Land of the Lost (1974), Famil..."> ()