Dominique McElligott (born 1986) is an Irish television and film actress, appearing primarily in independent films. She starred in Moon alongside Sam Rockwell as well as the RTÉ series Raw before leaving to film Leap Year. She also plays the female lead role in the AMC Western series Hell on Wheels.

Sarah Greene (born 25 October 1958) is a British television personality well known for presenting live TV: long-running series such as Blue Peter, from 19 May 1980 until 27 June 1983, Saturday Superstore, Going Live for 10 years and big event/awards shows.

Greene was born in London, England, the daughter of Welsh DIY expert Harry Greene and actress Marjie Lawrence. She is sister of presenter Laura Greene. Sarah was educated at the Gospel Oak Primary School and the Grey Coat Hospital school, London, while also pursuing child acting roles. She graduated with a degree in Drama from University of Hull. She then pursued acting roles in Birmingham, Manchester and London.

In early 1980, Greene had a role on the daytime drama Together (Southern Television/ITV), which began in January. She first appeared on Blue Peter after appearing in the BBC adaptation of Pamela Brown's The Swish of the Curtain after which she was asked by then producer Biddy Baxter to be the replacement for the outgoing Tina Heath. At the time Greene was the youngest ever presenter of Blue Peter, aged 22 and within two weeks was filming in Cornwall for the show. Programme won BAFTA during Greene's 3 year tenure. After leaving Blue Peter, she presented Saturday Superstore with Mike Read, and subsequently co-presented Going Live! with Phillip Schofield. It was during her time on Going Live! that Sarah won "Best Female on TV" SOS Award 3 years running. She then began to appear in television commercials for Nescafe coffee. Later, she fronted Channel 4's popular daytime antiques programme Collectors Lot.

Anson Adams Mount IV (born February 25, 1973) is an American actor who has appeared in both movies and television shows. Mount has also played Jim Steele on the short-lived NBC series Conviction and appeared in the independent movie Tully with Julianne Nicholson, as the title character Tully Coates, a playboy whose ways are changed when he meets Ella Smalley (Nicholson), a friend of his brother. He currently is starring in the AMC show "Hell on Wheels".

Mount is from the small town of White Bluff, Tennessee. His father, Anson Adams Mount II, was one of the original contributing editors to Playboy magazine, and his mother was a professional golfer. His great-great-great grandfather was a Confederate cavalry colonel in the Civil War.

Mount attended Dickson County Senior High School in Dickson, Tennessee, The University of the South and Columbia University.

Christopher Heyerdahl is a Canadian actor who has had roles in many prominent television shows and movies.

Heyerdahl was born in the mountains of British Columbia and is of Norwegian and Scottish descent.Thor Heyerdahl was his father's cousin.

Heyerdahl is known for his role as Leonid in the Are You Afraid of the Dark? episode "The Thirteenth Floor" and as Nosferatu in the episode "Midnight Madness". He played the characters Halling and Wraith commander Todd in Stargate Atlantis, and Pallan in the Stargate SG-1 episode "Revisions". He played H.P. Lovecraft in the movie Out of Mind (1998) and a punk, new at drug dealing, in Cadavres (2009).

He played the part of the demon Alastair in three episodes of Supernatural. He also played the part of Zor-El in the television series Smallville, as well as playing John Druitt and Bigfoot in the series Sanctuary.

He had a role in the feature film New Moon, an adaptation of Stephenie Meyer's second book in her Twilight Saga. In this film, he played a vampire, Marcus, who is part of a powerful Italian family called the Volturi. He will reprise that role in both parts of Breaking Dawn, the two part adaption of the fourth book in the Twilight Saga.

Robin McLeavy (born June 19, 1981) is an actress from Sydney, Australia and NIDA graduate.

McLeavy graduated from NIDA in 2004. She starred as Lola Stone in the critically acclaimed Australian horror The Loved Ones, directed by Sean Byrne. The film screened at Toronto International Film Festival in 2009 and won the Audience Choice Award.

In 2009 McLeavy played the role of Stella Kowalski opposite Cate Blanchett and Joel Edgerton in the Sydney Theatre Company production of A Streetcar Named Desire. The production was directed by Liv Ullmann and toured to the Kennedy Center in Washington DC and the Brooklyn Academy of Music in New York. McLeavy received the American Helen Hayes Award for Outstanding Supporting Performer.

McLeavy appeared in four encore seasons of Holding the Man, an award-winning play by Tommy Murphy.

She played Isabella in Benedict Andrew's production of Measure for Measure by William Shakespeare at the Belvoir Theatre, Sydney 5–25 July 2010. She also appeared as Honey in " Who's Afraid of Virginia Woolf" directed by Benedict Andrews for Belvoir Theatre Company in 2007, for which she was nominated for Best Supporting Actress at the Sydney Theatre Awards.