Question: The actress who plays Vala Mal Doran in Stargate SG-1 is of what nationality?

Context paragraphs:
Robert C. Cooper: Robert C. Cooper is a Canadian writer and producer best known for his work in the "Stargate" franchise.  He was formerly an executive producer of "Stargate SG-1", "Stargate Atlantis" and "Stargate Universe".  He also co-created both "Stargate Atlantis" and "Stargate Universe" with Brad Wright.  Cooper has written and produced many episodes of "Stargate SG-1", "Stargate Atlantis" and "Stargate Universe" as well as directed a number of episodes.

Stargate SG-1 (season 9): Season nine of "Stargate SG-1", an American-Canadian television series, began airing on July 15, 2005 on SCI FI.  The ninth season concluded on March 10, 2006, after 20 episodes on the same channel.  The series was originally developed by Brad Wright and Jonathan Glassner, and Brad Wright, Robert C. Cooper, Joseph Mallozzi and Paul Mullie served as executive producers.  The season arc centers on the new threat of the Ori, a race who Daniel Jackson (Michael Shanks) and Vala Mal Doran (Claudia Black) unleash in an unknown galaxy, and who are threatening to prepare for a crusade into the Milky Way galaxy to convert the beings to their religion called Origin.

Daniel Jackson (Stargate): Daniel Jackson, Ph.D., is a fictional character in the military science fiction franchise "Stargate", and one of the main characters of the series "Stargate SG-1."  He is portrayed by James Spader in the 1994 film "Stargate", and by Michael Shanks in "Stargate SG-1" and other "SG-1" derived media.  Jackson is the only "Stargate" character to appear in all of the films and series in the franchise (not including the non-canonical "Stargate Infinity"); the main character Jack O'Neill did not appear in the 2008 film "".

Stargate SG-1 (season 8): Season eight of "Stargate SG-1", an American-Canadian military science fiction television series, began airing on July 9, 2004 on the Sci Fi channel.  The eighth season concluded on February 22, 2005, after 20 episodes on British Sky One, which overtook the Sci Fi Channel in mid-season.  This was the first season of the show to have 20 episodes instead of 22, as well as the first to air concurrently with "Stargate SG-1" spinoff series "Stargate Atlantis" (the first season thereof).  The series was originally developed by Brad Wright and Jonathan Glassner, while Brad Wright and Robert C. Cooper served as executive producers.  Season eight regular cast members include Richard Dean Anderson, Amanda Tapping, Christopher Judge, and Michael Shanks.  The eighth season begins with the SG-1 team trying to revive Colonel Jack O'Neill (Richard Dean Anderson) after the events of the seventh season.  At the end of the two-episode season opener, Colonel O'Neill is promoted to General and assumes command of Stargate Command (SGC), while Major Samantha Carter (Amanda Tapping) is promoted to Lieutenant Colonel and assumes command of SG-1.  The season arc centers on the growing threat and seemingly final defeat of the Goa'uld and the Replicators, races who were introduced in the first and third season of the show, respectively.

Samantha Carter: Samantha "Sam" Carter, USAF is a fictional character in the Canadian–American military science fiction "Stargate" franchise.  Played by Amanda Tapping, she appears in all three shows in the franchise: "Stargate SG-1", "Stargate Atlantis", and "Stargate Universe".  She was a main character in all ten seasons of "Stargate SG-1" (1997–2007).  Following a recurring role in "Stargate Atlantis" for three seasons (2004–07), Carter became a main character in Season 4 of "Atlantis" (2007–08), and also appeared in the 2008 direct-to-DVD "SG-1" films "" and "".  Amanda Tapping accepted a starring role in "Sanctuary" and appears in only the first and last episodes in Season 5 of "Atlantis" (2008–09).  Carter also appears in two episodes of Season 1 of "Stargate Universe."

Stargate: Continuum: Stargate: Continuum is a 2008 Canadian-American military science fiction direct-to-video film in the "Stargate" franchise.  It is the second sequel to television series "Stargate SG-1" following "".  It is directed by Martin Wood, director and producer of many episodes of "Stargate SG-1" and "Stargate Atlantis", written by "SG-1" and "Atlantis" creator Brad Wright, and produced by Wright and "Ark of Truth" director Robert C. Cooper.

Vala Mal Doran: Vala Mal Doran is a fictional character in the American military science fiction television series "Stargate SG-1", a science fiction show about a military team exploring the galaxy via a network of alien transportation devices.  Played by former "Farscape" actress Claudia Black, Vala was created by Damian Kindler and Robert C. Cooper as a guest character for the season 8 episode "Prometheus Unbound" (2004).  Because of the on-screen chemistry between Black's Vala and Michael Shanks' character Daniel Jackson, and the character's popularity with the producers and the audience, Claudia Black became a recurring guest star in season 9 (2005–2006) and joined the main cast in season 10 (2006–2007).

Carl Binder: Carl Binder is a television writer and producer.  He is most noted for his contributions to the "Stargate SG-1" and "Stargate Atlantis" series as well as "Dr. Quinn, Medicine Woman" and "Little Men".  Binder currently resides in Vancouver, British Columbia and created the Pocahontas for the 1995 movie, "Pocahontas".  Binder will co-write the third "Stargate SG-1" movie with Brad Wright and serves as an executive producer for the new "Stargate" series, entitled "Stargate Universe".

Claudia Black: Claudia Lee Black (born 11 October 1972) is an Australian actress and voice actress, known for her portrayals of Aeryn Sun in the science fiction series "Farscape" and Vala Mal Doran in the science fiction series "Stargate SG-1", as well as Sharon "Shazza" Montgomery in the film "Pitch Black".  She has also had several prominent roles in video games, such as Chloe Frazer in the "Uncharted" series, the witch Morrigan in "" and "", Daro'Xen in "Mass Effect 2" and "Mass Effect 3", and squadmate Samantha Byrne in "Gears of War 3".  She also starred as Doctor Sabine Lommers in the miniseries "Containment".

Stargate SG-1: Stargate SG-1 (often abbreviated as SG-1) is an adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's "Stargate" franchise.  The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 science fiction film "Stargate" by Dean Devlin and Roland Emmerich.  The television series was filmed in and around the city of Vancouver, British Columbia, Canada.  The series premiered on Showtime on July 27, 1997 and moved to the Sci Fi Channel on June 7, 2002; the final episode first aired on Sky1 on March 13, 2007.  With 214 episodes over ten seasons, "Stargate SG-1" had surpassed "The X-Files" as the longest-running North American science fiction television series, until it was surpassed by the series "Smallville" in 2011.

Supporting paragraphs: Stargate SG-1 (season 9) Claudia Black
Answer: Australian