Anecdotes

Speaks Spanish fluently. Besides a brief scene in Friends with Money (2006), his role in La conjura de El Escorial (2008) (original title: 'La conjura de El Escoria') was completely in Spanish.

He writes left-handed, but is otherwise right-handed.

Met his wife, Emma Hewitt, at drama school.

Has a daughter named Ruby, born August 2005, who was named by her older sister, Lily.

Is an avid comic-book fan and possessed an enormous collection of Marvel and DC titles as a child.

Has a daughter named Lily, born on 23 March 2002.

His parents were both from Ashkenazi Jewish families. Their ancestors emigrated from Belarus, Russia, and Poland, to England, settling mostly in Liverpool.

Emma Hewitt is his common law wife with whom he has lived for 20 years.

Has a cult following due to the weekly 'Kermode and Mayo's Film Review' on BBC, Radio Five Live, where he is regularly saluted ("Hello to Jason Isaacs!") by his former classmate and film critic Dr Mark Kermode, a practice that the fan base of this show picked up.

Harry Potter co-star Gary Oldman is one of his favorite actors.

Longtime best friend of writer/director Paul W.S. Anderson.

Ranked 54 on Empire Magazine's 100 Sexiest Movie Stars. (2009)

Was set to play Dr. William Birkin in Resident Evil: L'apocalypse (2004), but left the project.

He sings two songs (albeit briefly) in Peter Pan (2003). (Isaacs was also listed for these songs in the closing credits; however, the songs themselves were omitted from the movie soundtrack. Other (uncredited) movie singing performances were The Last Minute (2001) (two songs), and Shérif Jackson (2013).

On TV (BBC), Isaacs sang in the 2013 Case Histories (2011) episode, Jackson and the Women (2013), and in the BBC Four TV play, The Curse of Steptoe (2008). These were also uncredited.

In addition to doubling for Mel Gibson, Girard Swan worked as Isaacs's stand-in and photo double in Le patriote (2000).

Shares two roles with Hans Conried. Conried appeared in the Disney animated version of Peter Pan (1953), while Isaacs appeared in the 2003 live action film. Both films followed a tradition encouraged by J.M. Barrie, and followed in most stage productions, that Mr. Darling and Captain Hook be played by the same actor. Accordingly, he and Conried played both parts in their respective films.

Pictured as the character Captain Lorca on one of a set of 18 British commemorative postage stamps issued 13 November 2020, celebrating the "Star Trek" television and film franchise. Stamps were issued as 12 individual stamps, honoring captains and crew members; and 6 stamps in a single souvenir sheet, highlighting heroes and villains. All stamps were nondenominated and marked first class (76p on day of issue). Others honored by this set are William Shatner, Patrick Stewart, Avery Brooks, Kate Mulgrew, Scott Bakula, Leonard Nimoy, Marina Sirtis, Alexander Siddig, Dominic Keating, Sonequa Martin-Green, Shazad Latif, Simon Pegg, Tom Hardy, Malcolm McDowell, David Warner, Alice Eve, and Idris Elba.

Isaacs has worked with Logan Lerman twice: In Le patriote (2000), where they were Col. William Tavington and William Martin, respectively; and Fury (2014), where Isaacs played Capt. Waggoner and Lerman played Norman Ellison.

He has played both Superman and his arch enemy Lex Luthor, voicing Superman in Superman: Red Son (2020 and Lex Luthor in Justice League: Gods And Monsters (2015).

In Armageddon (1998), Harry Stamper (Bruce Willis) sarcastically called Dr. Ronald Quincy (Isaacs) "Mr. Wizard". Four years later, Isaacs actually began portraying a Wizard, Lucius Malfoy (in Harry Potter et la chambre des secrets (2002)).

Good friends with Paul Greengrass.

Has been in at least two movies with the offspring of music legends. In Armageddon (1998), he appeared alongside Liv Tyler (daughter of Aerosmith's Steven Tyler). Lily Collins--daughter of Genesis drummer/soloist Phil Collins--starred in Enlevèment (2011), in which Isaacs appeared.

Isaacs has done two movies with portrayals of Joseph Stalin: Adrian McLoughlin played Stalin in the dark comedy La mort de Staline (2017), and William Salyers voiced Stalin in the direct-to-video Superman: Red Son (2020).

Has worked with two different men named "Paul Davies": Paul Davies was the Supervising Sound Editor for Isaacs's movie, 'Good (2008)'. Paul Davies was an uncredited Assistant Colourist for both 'Black Hawk Down (2001)' (in which Isaacs portrayed Capt. Mike Steele), and for 2002's 'Harry Potter and the Chamber of Secrets (2002)'--plus other "Harry Potter" movies--in which Isaacs's character, Lucius Malfoy, was introduced.