He does a very good impersonation of Jeff Goldblum, as demonstrated during his appearance on "Saturday Night Live" (1975).
Made his film debut in Working Girl (1988), as one of the guests hiding in the bathroom at Tess's surprise birthday party.
Filed a $25 million lawsuit against the producers and syndicators of "The X Files" (1993) alleging he's been cheated of his contractual share of profits from series.
While at Yale, he was classmates with Jennifer Beals, whom Duchovny suggested for a part on "The X Files" (1993) (it eventually went to Gillian Anderson).
Was partially responsible for moving the filming of "The X Files" (1993) series from Vancouver to California.
Very good friends with Nicholas Lea, who played his nemesis Alex Krycek on "The X Files" (1993).
Birthday is two days before "The X Files" (1993) co-star Gillian Anderson). He is eight years her senior.
Is the only cast member of "The X Files" (1993) to host "Saturday Night Live" (1975).
Daughter Madelaine West Duchovny born April 24th, 1999, 2nd child son Kyd Miller Duchovny born June 15th, 2002.
Appeared on the Celebrity edition of Who Wants To Be A Millionaire in 2000. He was the first celebrity in the hot seat. He answered 13 questions correctly giving him $250,000 for his charity. However, he then answered his $500,000 incorrectly resulting in a $218,000 loss and he left with $32,000.
Family: His father's name was Amram. From a Russian-Jewish family he was a Brooklyn-born publicist for the American Jewish Commitee, died on 23 August 2003 from heart disease. His mother's name is Margaret. She is of Scottish ancestry. Brother, Daniel Ducovny, sister Laurie, and a stepbrother named Jonathan Sahula. Duchovny means 'spiritual' in Russian.
Uncle of twin boys Gabriel and Luca (b. May 2004), sons of his sister Laurie and brother-in-law Michael Birnbaum.
First celebrity guest to appear on the TV premiere of "The Late Late Show with Craig Ferguson" (2005) (3 January 2005).
Checked himself into a rehabilitation center seeking treatment for sex addiction. Completed rehab on October 7, 2008. On October 15th just 8 Days after completing Rehab, David announced that he and his wife Téa Leoni had been separated for several months. In 2009, the couple was seen together again. In interviews in the following months Duchovny revealed that they had reconciled. [August 2008]
Loves dogs. Hated making the scene where agent Mulder was being mauled by a dog and forced to attack the dog for The X Files: I Want to Believe (2008).
Was the first actor to win a Golden Globe for both TV Drama and TV Comedy and is still one of only two actors to accomplish the feat (Kelsey Grammer joined him in 2012).