John Blyth Barrymore

John Blyth Barrymore III (born May 15, 1954) is an American film and television actor. He is known for his role as Zeke in the 1970s television series Kung Fu, which was his first role on television.

John Blyth Barrymore III was born to John Drew Barrymore and Cara Williams. As such, he is from the famous Barrymore family: He is the half-brother of American actress Drew Barrymore, as well as the grandnephew of Ethel Barrymore and Lionel Barrymore. He is of partial Irish descent through his great-grandfather, actor Maurice Costello. John has stated that he does not remember if he met his aunt Diana Barrymore, who was also an actress.

Like his father, John has had a sporadic career in film and television, mainly appearing in shlock horror movies and comedies. John found himself homeless in 2012. While on skid row, he took to wearing a shirt printed "I'm Drew Barrymore's brother".

After John and Drew's half-sister Jessica Barrymore was found dead in her vehicle in 2014, he publicly criticized Drew for not being receptive to forming a relationship with either him or Jessica.