Question: Katie McGrath is an Irish actress and model who played the lead role in what Canadian horror anthology series?

Context paragraphs:
Merlin (series 3): The third series of "Merlin" began on 11 September 2010.  Series three regular cast members include Colin Morgan, Bradley James, Katie McGrath, Angel Coulby, Anthony Head, and Richard Wilson, as well as Emilia Fox joining the regular cast.  John Hurt took his previous role as the voice of the Great Dragon but was no longer one of the regular cast (though he continued to provide the opening narration for the series).  Series three consists of 13 episodes.  The series three premiere was watched by 6.49 million viewers.

Gavin Grant (editor): Gavin J. Grant is a science fiction editor and writer.  He runs Small Beer Press along with his wife Kelly Link.  In addition, he has been the editor of Lady Churchill's Rosebud Wristlet since 1996 and, from 2003 to 2008, was co-editor of the Year's Best Fantasy and Horror anthology series along with Link and Ellen Datlow.  Their 2004 anthology was awarded the Bram Stoker Award for best horror anthology.

Katie McGrath: Katie McGrath ( ) is an Irish actress and model who is best known for portraying Morgana on the BBC One show "Merlin" (2008–2012), Lucy Westenra on the British-American series "Dracula" (2013), Zara Young in the science fiction adventure film "Jurassic World" (2015), the lead role in first season of the Canadian horror anthology series "Slasher" (2016) and Lena Luthor in "Supergirl".  (2016–present).

Grace Kelly filmography: Grace Kelly (November 12, 1929 – September 14, 1982) was an American actress who made her debut on television in the play "Old Lady Robbins" (1948) on the anthology series, "Kraft Television Theatre".  In 1950, she made numerous television appearances on anthology series including "The Philco Television Playhouse", "Studio One", "The Clock", "The Web", and "Danger".  The following year, Kelly played Helen Pettigrew in the television play "Berkeley Square" on the "Prudential Family Playhouse".  In 1952, she portrayed Dulcinea in the drama "Don Quixote" on the anthology series "CBS Television Workshop".  In the same year, Kelly also starred in a number of other anthology series including "Hallmark Hall of Fame", "Lux Video Theatre", and "Suspense".

Slasher (TV series): Slasher is a Canadian television horror anthology series created by Aaron Martin.

Goosebumps (TV series): Goosebumps is a Canadian horror anthology television series based on R. L. Stine's best-selling "Goosebumps" book series.

Exhumed (film): Exhumed is a 2003 Canadian horror anthology film directed and written by Brian Clement.  Set in three different time periods and locales, the film tells the story of an artifact that can return the dead to life.

Merlin (series 1): The first series of "Merlin", a British fantasy television series, began on 20 September 2008 and ended on 13 December 2008.  Regular cast members for the first series include Colin Morgan, Bradley James, Katie McGrath, Angel Coulby, Anthony Head, Richard Wilson, and John Hurt as the voice of the Great Dragon.  The first series contained thirteen episodes, with 7.15 million tuning into the premier and 6.27 for the series finale.  It was the only series to be comprised completely of stand-alone episodes.  Before the series finale, the BBC confirmed that the series was renewed for a further 13 episode second series.  Series two premiered on 19 September 2009.

Matt Bomer: Matthew Staton Bomer (born October 11, 1977) is an American actor.  He made his television debut with "Guiding Light" in 2001, and gained recognition with his recurring role in the NBC television series "Chuck".  He played the lead role of con-artist and thief Neal Caffrey in the USA Network series "White Collar" from 2009 to 2014.  Bomer won a Golden Globe Award and received a Primetime Emmy Award nomination for his supporting role as Felix Turner, opposite Mark Ruffalo, in the HBO television film "The Normal Heart" (2014).  Bomer made a guest appearance on of FX's horror anthology series "American Horror Story".  He was later upgraded to main cast during the .

Late Night Double Feature: Late Night Double Feature is a Canadian horror anthology film which premiered at the 2014 New York City Horror Film Festival.  The film was picked up for distribution by Parade Deck Films in North America.

Supporting paragraphs: Katie McGrath Slasher (TV series)
Answer: Slasher