John David Hannah (born 23 April 1962) is a Scottish film and television actor.
 He came to prominence in Richard Curtis's "Four Weddings and a Funeral" (1994), for which he was nominated for the BAFTA Award for Best Actor in a Supporting Role.
 His other film appearances include "Sliding Doors" (1998) and "The Mummy" trilogy (1999–2008).
 His television roles include: Dr Iain McCallum in "McCallum" (1995–1998); D.I. John Rebus in "Rebus" (2000–2001); Jack Roper in "New Street Law" (2006–2007); Jake Osbourne in "Cold Blood" (2007–2008), Quintus Lentulus Batiatus in "Spartacus" (2010–2011), Jack Cloth in "A Touch of Cloth" (2012–14), Jason's father (Aeson) in the BBC series "Atlantis" (2013–15) and Dr. Holden Radcliffe in "Agents of S.H.I.E.L.D." (2016-2017).
Spartacus: Vengeance is the second season of the American television series "Spartacus", a Starz television series, which follows "".
 It premiered on January 27, and concluded on March 30, 2012.
 Its story follows Spartacus (played by Liam McIntyre, who replaces the late Andy Whitfield), after he and his fellow gladiators kill their master Batiatus and escape from his "ludus", or gladiatorial training school.
 Cast members and characters who return from the first season include Lucy Lawless as Lucretia, Peter Mensah as Oenomaus, Manu Bennett as Crixus, Dan Feuerriegel as Agron, Nick E. Tarabay as Ashur, Viva Bianca as Ilithyia, and Craig Parker as Gaius Claudius Glaber.
 Dustin Clare also reprises his role as Gannicus from "", the prequel to "Spartacus: Blood and Sand".
Liam James McIntyre (born 8 February 1982) is an Australian actor best known for playing the lead role in the Starz television series "" and "".
 He has also appeared "The Legend of Hercules", "The Flash", and "Gears of War 4", amongst other roles.
 He currently stars as Dr. Eli Nader on "Pulse".
Pankaj Dheer is an Indian television and film actor.
 His best known role was as Karna in epic TV series, Mahabharata (1988–1990), which became a famous Indian television series, and as Shivadatta in "Chandrakanta" (TV series) (1994–1996).
 He also played the role of Sadashivrao Bhau, the commander in chief of the Maratha army at the third battle of Panipat in the TV series The Great Maratha produced by Sanjay Khan.
Susan Gabrielle "Sue" Ball (born March 2, 1967, in Philadelphia, Pennsylvania) is an American actress.
 She is best known for her starring role in "Leo and Liz in Beverly Hills", which was created by Steve Martin.
 She has had many guest starring and recurring roles, most notably "Rags to Riches" (TV series), "Perfect Strangers" (TV series), "Valerie" (TV series), and "It's a Living" (1980 TV series).
Josef Altin (born as Yusuf Altın; 12 February 1983) is an English TV series and film actor who has the role of Pypar in the HBO fantasy TV series "Game of Thrones".
 Other notable performances is his role as Ekrem in "Eastern Promises" and his roles in "The Bill", "Peep Show" and "Casualty".
 He starred in D.C. Moore's hit play "The Empire" at the Royal Court Theatre in London.
 Also played the role of Darren in Him and Her, BBC TV series.
Jonathan Manu Bennett (born 10 October 1969) is a New Zealand born actor.
 He is known for his portrayal as the Gallic gladiator Crixus in the Starz television series "Spartacus".
 He has also appeared as the orc commander Azog the Defiler in Peter Jackson's three-part film adaptation based on "The Hobbit" by J. R. R. Tolkien, and as supervillain Slade Wilson/Deathstroke in The CW TV series "Arrow".
 Since January 2016, he plays the role of Allanon in the MTV series "The Shannara Chronicles", based on the "Shannara" novel series by Terry Brooks.
David Gasman (September 27, 1960) is an American actor, voice artist, director and translator.
 He has appeared in many popular cartoons and video games, such as "Rayman" and "Code Lyoko".
 In his acting career, he has acted in movies like "Jefferson in Paris", "The Bourne Identity", "Arthur and the Vengeance of Maltazard", "Babylon A.D.", and "Largo Winch" as well as in over fifty theatrical productions including several musicals.
 He was well received in an important recurring role in "Kaboul Kitchen", a French TV series.
Vengeance demons are a group of beings that appear in the TV series "Buffy the Vampire Slayer".
 They are immortals who travel the world exacting vengeance on behalf of victims, such as scorned men, women or neglected children.
 Some of them, according to Halfrek in the episode "Older and Far Away", prefer to be called justice demons, which carries less stigma than 'vengeance'; the term "vengeance demon" itself was first used in "Pangs".
 Their typical method is to encourage a wronged person to vent spleen about those who have hurt them.
 The moment the object of the demon's attention expresses their preferred method of punishment in the form of a wish, the vengeance demon can cause his or her wish to come true, whether it requires gruesome dismemberment or even the creation of a new alternate universe (as in "The Wish").
Cynthia Addai-Robinson (born January 12, 1985) is an American actress.
 She is best known for her roles as Naevia in the Starz television series "Spartacus" and DC Comics character Amanda Waller in The CW TV series "Arrow".
 Since November 2016, she plays the role of Nadine Memphis on the USA Network series "Shooter".

Question: The actor that plays Spartacus in the tv series "Spartacus: Vengeance" plays what role on "Pulse"?
Answer: Dr. Eli Nader