Question: Charles Halford played Francis "Chas" Chandler in a tv series that stars what actor in the title role?
Context: Charles Halford (born February 28, 1980 in Salt Lake City, Utah) is an American actor.  In 2009, he starred in the DCOM "Dadnapped" as Skunk.  He has also co-starred in dozens of other television shows and films such as "The Luck of the Irish".  Halford was a main cast member on the NBC series "Constantine", portraying Francis "Chas" Chandler. Turning Point 2 is a 2011 Hong Kong action crime thriller film directed by Herman Yau and starring Michael Tse in the title role of "Laughing Gor" and co-starring Francis Ng, Chapman To and Bosco Wong.  The film is a distant sequel to the 2009 film "Turning Point", a direct sequel to the 2011 TV series "Lives of Omission" and the third spin-off of "The Academy" franchise featuring Tse's character from "E.U." 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. Hellblazer Presents: Chas – The Knowledge is a comic book limited series, written by Simon Oliver, with artwork by Goran Sudžuka, and cover art by Glenn Fabry.  It is a spin-off from the Vertigo series "Hellblazer", featuring John Constantine's oldest and closest friend, Francis 'Chas' Chandler. Dwayne Cameron (born 28 October 1981) is a New Zealand born film actor, writer, director and producer.  First and foremost Cameron specializes as a fine arts painter and sculptor.  Most recently as an actor he was cast by Roger Donaldson to star as the title role of Bruce McLaren in Donaldson's feature length doco-drama McLaren and starred in the Amazon TV series .  Globally Cameron is perhaps best known for playing the lead roles of Bray on the teen drama series "The Tribe" and Tyzonn in "Power Rangers Operation Overdrive" and starring as the leading role in feature films "Nice Package", "The Locals" and "Desired".  Recurring lead roles in internationally distributed TV series include "Street Legal", "The Cult", "Mercy Peak", "Shortland Street", "Agent Anna" and "Legend of the Seeker". Tania Raymonde (born Tania Raymonde Helen Katz; March 22, 1988) is an American actress.  She began her career in the recurring character of Cynthia Sanders in TV series "Malcolm in the Middle" between 2000 and 2002, followed by the role of Alex Rousseau in the ABC series "Lost" from 2006 to 2010.  She has since played Carla Rinaldi on MTV's "Death Valley" (2011), starred in the horror film "Texas Chainsaw 3D" (2013) and portrayed Jodi Arias, the title role in the TV movie "" (2013).  In April 2015, she joined the cast of the TNT series "The Last Ship".  She is a star of the current Amazon Video series "Goliath". Constantine is an American television series developed by Daniel Cerone and David S. Goyer for NBC, featuring the DC Comics character John Constantine.  Matt Ryan stars as Constantine, a British exorcist and occult detective who actively hunts supernatural entities.  The series aired from October 24, 2014 to February 13, 2015, over 13 episodes.  On May 8, 2015, NBC canceled "Constantine" after only one season due to poor ratings.  Ryan reprised the role in a guest appearance in the fourth season of The CW series "Arrow", set within the Arrowverse, and it was announced in January 2017 that he would voice the character in an animated web series on The CW Seed later that year. Mark Rendall (born October 21, 1988) is a Canadian actor, perhaps best known for starring in the title role of the 2004 film, "Childstar", as well as Mick in Season 1 of the Canadian television drama series "ReGenesis".  He played Bastian Bux in the TV series, "Tales from the Neverending Story", and the title character in "The Interrogation of Michael Crowe".  He has also done voice work for the television series "Jane and the Dragon" and "Time Warp Trio", and starred in the popular kid TV series "Arthur" (Season 6-8).  Recently, Rendall has appeared in several Hollywood films. Seven Color Mask (七色仮面 , Nanairo Kamen ) is the name and title character of a tokusatsu TV series, later called New Seven Color Mask (新七色仮面 , Shin Nanairo Kamen ) .  It was created by Kōhan Kawauchi, who also created "Moonlight Mask".  This B&W TV show was the first superhero TV series by Toei Company Ltd..  It was broadcast on NET (now TV Asahi) from June 3, 1959 to June 30, 1960, with a total of 57 episodes divided into 7 segments.  Aside from being Toei's first superhero show, this series was also the debut of actor Sonny Chiba, who was 19 at the time, who took over the title role from Susumu Namijima after Episode 32. The Saint is a 2017 espionage thriller TV movie directed by Ernie Barbarash and starring Adam Rayner in the title role of Simon Templar, created by Leslie Charteris.  This was Sir Roger Moore's final film appearance and the film was dedicated to his memory; Moore portrayed Templar in a 1960s TV series of the same title.  Filmed in 2013 as a television pilot for a proposed TV series, the film was not originally intended for release when the series was not picked up.  It eventually saw release direct-to-video in 2017 when it was released in tribute to Moore following his death.  Ian Ogilvy, who portrayed Templar in a 1970s TV series titled "Return of the Saint", also appears.
Answer: Matt Ryan