Winkler, best known as "Arthur ‘Fonzie' Fonzarelli" from Happy Days, is cousins with actor Richard Belzer, best known for playing "Detective/Sergeant John Munch" on both Homicide: Life on the Street and Law & Order: Special Victims Unit. Belzer had a small role in Winkler's 1982 movie Night Shift, and Winkler appeared on a 2002 episode of SVU.
Henry is the father of Max Winkler. Max's
first onscreen appearance was as "Boy in Bathroom" in Cop and ½ (1993),
which Henry directed. Max is also a writer and director whose credits include the
2006 short film The King of Central Park, starring Henry. Henry's wife, Stacey Winkler, has had a couple of small acting roles and worked in the casting department for the 1995 film Safe.
Richard's wife, actress/producer Harlee McBride (1977's Young Lady Chatterley), appeared with him in 1983's Likely Stories, Vol. 3. They married in 1985. In 1989, she appeared in the music video for Mike + the Mechanics: A Closer Look, in which Richard starred. She appeared as Marilyn Monroe in Richard's 1997 HBO comedy special, Richard Belzer: Another Lone Nut. From 1994-1999, she played medical examiner "Dr. Alyssa Dyer" in his show Homicide: Life on the Street. In 2007, Harlee produced the short film Le viager, starring Richard.
Bree Benton, Harlee's daughter with actor Garth Benton (1963's 13 Frightened Girls!), appeared with her stepfather Richard in a 1999 episode of Homicide: Life on the Street.