Michael Douglas's parents divorced when he was six, and he was raised primarily by his mother, actress Diana Douglas, and her subsequent husband, novelist Bill Darrid. At 22, Douglas made his film debut with a bit part in his father Kirk Douglas's Cast A Giant Shadow. He was in his mid-20s before he began getting movie and television roles, and he perplexed his agent by insisting on off-beat parts. He was 28 when he took the young sidekick role opposite Karl Malden's veteran cop in The Streets of San Francisco.
Despite the grumbling of audiences waiting to be offended, a good actor taking challenging parts -- and most of his films, including the "controversial" titles, have been entertaining, well-reviewed, and well-received. He has also appeared in more mainstream roles as The American President with Annette Bening, or the Drug Czar in Traffic.
There has been no press release announcing it, but observers say they have seen the tell-tale scars of plastic surgery on Douglas, who is now in his 60s. And in 2000, he re-entered "creepy" territory by divorcing his wife of 23 years to marry 31-year-old Catherine Zeta-Jones, a marriage in which Douglas is older than his father-in-law.
[1] Patricia Erens, The Jew in American Cinema (1984), page 383,  states outright that he is Jewish. His father Kirk Douglas is Jewish, though mother Diana Dill is a WASP. Michael Douglas is known to be a supporter of the Jewish National Fund, a fact we note although it is inconclusive as to his religious identification. Douglas is also listed in Klein and Vuijst's The Half-Jewish Book (2000).
Father: Kirk Douglas (actor, b. 9-Dec-1916)
Mother: Diana Douglas (actress, b. 22-Jan-1923, m. 2-Nov-1943, div. 1950, d. 3-Jul-2015)
Brother: Joel Douglas (film producer, b. 23-Jan-1947)
Brother: Peter Douglas (half-brother, film producer, b. 23-Nov-1955)
Brother: Eric Douglas (actor, b. 21-Jun-1958, half-brother, d. 6-Jul-2004 drug overdose)
Father: Bill Darrid (stepfather, novelist, married Diana Douglas)
Girlfriend: Brenda Vaccaro (actress, together 1970-76)
Girlfriend: Elizabeth Vargas (TV newscaster)
Wife: Diandra Mornell Luker (m. 20-Mar-1977, sep. 1995, div. Jun-2000, one son)
Son: Cameron Douglas (drug dealer, b. 13-Dec-1978)
Wife: Catherine Zeta-Jones (actress, m. 18-Nov-2000, one son, one daughter)
Son: Dylan Michael Douglas (b. 8-Aug-2000)
Daughter: Carys Zeta Douglas (b. 22-Apr-2003)
    High School: Choate Rosemary Hall, Wallingford, CT
    University: BA, University of California at Santa Barbara (1968)
    Al Franken for Senate 
    Bill Bradley for President 
    Caribou Club 
    Dean for America 
    Democratic Congressional Campaign Committee 
    Democratic Senatorial Campaign Committee 
    Effective Government Committee 
    Friends of Hillary 
    Gore 2000 
    Hillary Clinton for President 
    Hillary Rodham Clinton for US Senate Committee 
    Jefferson Awards Board of Selectors
    Kucinich for President 
    National Leadership PAC 
    New Leadership for America PAC 
    Obama for America 
    Ploughshares Fund Board of Directors
    United Nations Association of the USA Advisory Board, Adopt-A-Minefield campaign
    Oscar for Best Actor 1988 for Wall Street
    Golden Globe 1988 for Wall Street
    New Perspectives Quarterly Board of Directors
    unknown detox facility 
    Sierra Tucson 1992
    Wedding: Michael Douglas and Catherine Zeta Jones (2000) 
    Risk Factors: Alcoholism, Smoking, Throat Cancer
    TELEVISION
    The Streets of San Francisco Inspector Steve Keller (1972-76)
    FILMOGRAPHY AS ACTOR
    Avengers: Endgame (22-Apr-2019) 
    Ant-Man and the Wasp (25-Jun-2018) 
    Robin Williams: Come Inside My Mind (Jan-2018) · Himself
    Unlocked (24-Apr-2017) 
    Ant-Man (29-Jun-2015) 
    Beyond the Reach (6-Sep-2014) 
    And So It Goes (10-Jul-2014) 
    Last Vegas (31-Oct-2013) 
    Supermensch: The Legend of Shep Gordon (7-Sep-2013) · Himself
    Behind the Candelabra (21-May-2013) · Liberace
    Haywire (7-Nov-2011) 
    Wall Street: Money Never Sleeps (14-May-2010) · Gordon Gekko
    Solitary Man (Sep-2009) 
    Ghosts of Girlfriends Past (1-May-2009) · Uncle Wayne
    Beyond a Reasonable Doubt (5-Feb-2009) · Mark Hunter
    Trumbo (10-Sep-2007) · Himself
    King of California (24-Jan-2007) · Charlie
    You, Me and Dupree (13-Jul-2006) 
    The Sentinel (19-Apr-2006) 
    Tell Them Who You Are (11-Sep-2004) · Himself
    The In-Laws (17-May-2003) 
    It Runs in the Family (25-Apr-2003) · Alex Gromberg
    Don't Say a Word (24-Sep-2001) 
    One Night at McCool's (19-Apr-2001) 
    Traffic (27-Dec-2000) · Robert Wakefield
    Wonder Boys (22-Feb-2000) 
    One Day in September (22-Oct-1999) · Himself [VOICE]
    Get Bruce (24-Jan-1999) · Himself
    A Perfect Murder (5-Jun-1998) 
    Completely Cuckoo (16-Dec-1997) · Himself
    The Game (12-Sep-1997) · Nicholas Van Orton
    The Ghost and the Darkness (11-Oct-1996) · Remington
    The American President (17-Nov-1995) · Andrew Shepherd
    Disclosure (9-Dec-1994) · Tom Sanders
    Falling Down (26-Feb-1993) 
    Basic Instinct (20-Mar-1992) · Det. Nick Curran
    Shining Through (31-Jan-1992) 
    The War of the Roses (8-Dec-1989) · Oliver Rose
    Black Rain (22-Sep-1989) · Nick
    Wall Street (11-Dec-1987) · Gordon Gekko
    Fatal Attraction (11-Sep-1987) · Dan Gallagher
    The Jewel of the Nile (11-Dec-1985) · Jack
    A Chorus Line (10-Dec-1985) 
    Romancing the Stone (30-Mar-1984) · Jack Colton
    The Star Chamber (5-Aug-1983) · Steven Hardin
    It's My Turn (24-Oct-1980) 
    Running (30-Oct-1979) 
    The China Syndrome (16-Mar-1979) · Richard Adams
    Coma (6-Jan-1978) · Dr. Mark Bellows
    Napoleon and Samantha (19-Jul-1972) 
    When Michael Calls (5-Feb-1972) 
    Summertree (6-Jun-1971) 
    Adam at Six A.M. (22-Sep-1970) 
    Hail, Hero! (4-Oct-1969)