In the late 1960s, he was one of the male contestants on the popular television show The Dating Game.

He was married twice to actress Melanie Griffith (briefly in 1976 and then from 1989-1996) and is presently married to Kelley Phleger of San Francisco. Ms. Phleger is related to the Gettys of Getty Oil. Mr. Johnboy has the son sustaining Patti D'Arbanville, Jesse, born in December 1982, a daughter with Griffith, Dakota Johnson, born in October 1989, and a daughter with Phleger, Atherton Grace Johnson, born in April 1999.

He it used to be that experienced a screaming match on the radio by having the hosts of the syndicated Ron & Ron Indicate, Ron Bennington (a.k.the. "Tex Bennington," okay, of The Ron and Fez Show) and Ron Diaz.

In the fall of 2005, he briefly starred in The WB courtroom television show Just Legal as the jaded lawyer by having a super immature & ideal partner (Jay Baruchel); the indicate was canceled inside October 2005.

Films
Tulse Luper Traveling bag, A (2003) Auf wiedersehen, Lover (1999) Tin Cup (1996) Innate Yesterday (1993) Shamefaced when Sin (1993) Tales of the Unexpected (1991) Harley Davidson and the Marlboro Man (1991) Paradise (1991) A Hot Spot (1990) Dead-Bang (1989) Sweetly Hearts Dance (1988) G.We. Joe - A Picture (1987) Prevent Fire (1985) Soggy Bottom United states (1984) Melanie (1981) Amateur Nighttime At A Dixie Bar & Grill (1979) A Boy and His Dog (1975) Go to to Macon County (1975) A Harrad Experiment (1973) Zachariah (1970) A Wizardly Garden of Stanley Sweetheart (1970)

Television appearances
Just Legal (2005) Nash Bridges (1996-2001) Within Pursuit of Honor (1995) Miami Vice (1984-1989) A Long Hot Summer (1985) Elvis & A Beauty Queen (1981) Them Experiences of Carol Letner (1981) Beulah Land (1980) Retaliation of the Stepford Married woman (1980) From either On this text to Eternity: Pearl Harbor (1980) From either On this text to Eternity: Isl& and Homecoming (1980) From either On this button to Eternity: Crossing & Secrets (1980) From either On this text to Eternity: Aftermath & Retaliation (1980) A Rebels (1979) Pressure Point (1978) Foremost Professional people Cry (1978) Them-5 (1978) Snowblind (1978) Katie: Portrait of the Centerfold (1978) Eight is Plenty (1977) Handle Girls (1977) A City (1976) Law of the Land (1976) Wall street of San Francisco (1976) A Cub (1974) Kung Fu (1973) Sarge (1971) A Dating Game (1969)

Producing credits
Casino Eye (Fall 2003 Pilot) Nash Bridges (1996-2001) A Marshal (1995) A Horatio Alger Awards (1994) In the Company of Darkness (1993) A Horatio Alger Awards (1993)

Music
Don Johnson - Let It Roll Album(1989) Don Johnson - Heartbeat Album(1987) Don Johnson - Heartbeat To the full Length Streaming video(1987)