Question: What Canadian film and television actress is noted for her role in a Canadian family drama television series which debuted on CBC on October 14, 2007?

Context paragraphs:
List of Heartland episodes: "Heartland" is a Canadian family drama television series which debuted on CBC on October 14, 2007.  "Heartland" follows sisters Amy and Lou Fleming, their grandfather Jack Bartlett, and Ty Borden, through the highs and lows of life at the ranch.

The Romeo Section: The Romeo Section is a Canadian spy thriller television series created and written by Chris Haddock which debuted on October 14, 2015, on CBC Television.  CBC renewed the series for a second season which began airing on October 5, 2016.  The series was not renewed for a third season.

Ted Follows: Edward James Follows (November 30, 1926 - October 21, 2016) was a Canadian film, television and stage actor.  He was best known for playing the role of Macduff in "Macbeth" at the Stratford Festival and the 1961 CBC Television film adaptation, and his television roles as the title character in the CBC drama series "McQueen", as crown attorney Arnold Bateman in "Wojeck", and as Prime Minister Charles Tupper in "The National Dream".

Carole Lazare: Carole Lazare, sometimes credited as Carol Lazare, is a former Canadian film and television actress who was prominent in the 1970s.  She is most noted for her role in the film "One Man", for which she won the Canadian Film Award for Best Supporting Actress in 1997.

CBC Presents the Stratford Festival: CBC Presents the Stratford Festival is a Canadian film and television series.  Produced by the Stratford Festival in conjunction with CBC Television, the series aims to film a Stratford production of every William Shakespeare play by 2025.  In addition to airing on CBC Television, the films will also be distributed theatrically both in and outside of Canada.

Jessica Steen: Jessica Steen (born December 19, 1965) is a Canadian film and television actress, noted for her roles in "Captain Power and the Soldiers of the Future", "Homefront", "Earth 2", "Armageddon", "", "NCIS", "Flashpoint" and the CBC series "Heartland".

Jackie Torrens: Jackie Torrens (born in Prince Edward Island) is a Canadian award-winning writer, actress, documentary-maker and journalist, best known for her CBC radio and television appearances, and for acting roles in the television series "Made in Canada" the OUTtv mini-series, "Sex & Violence" and Andrea Dorfman's feature film "Heartbeat".  Her most recent television documentary, Small Town Show Biz: 2 Dreams from a Harbourtown, airs on CBC and the Documentary Channel in the fall of 2017.  Her television documentary, "Edge of East", is about three east coast subcultures and aired on the Documentary Channel and CBC in the summer of 2014.  Her television documentary "My Week on Welfare" also aired on CBC and the Documentary Channel in the summer of 2015.  These documentaries are directed, hosted and written by Torrens and are produced by her production company Peep Media.  Edge of East and Week on Welfare have been nominated for Best Documentary at the Screen Nova Scotia awards.  In spring of 2017, she directed and wrote Free Reins, a documentary about a maverick that runs a horse therapy farm, for Telltale Productions and CBC's Firsthand series.

Georgina Reilly: Georgina Reilly (born February 12, 1986) is a Canadian film and television actress, best known to date for her roles in the films "Pontypool" and "This Movie Is Broken", the television series "The L.A. Complex" and "Murdoch Mysteries", and the CBC Radio drama series "Trust Inc."

Who Do You Think You Are? (Canadian TV series): Who Do You Think You Are?  is a Canadian television documentary series, which aired on CBC Television during the 2007-2008 television season.  It was on Thursday evenings at 7:30 p.m. starting October 11, 2007.  Based on the earlier BBC series "Who Do You Think You Are? ", each episode profiled a Canadian celebrity tracing their family tree.  The series was announced in June 2007 as part of CBC's schedule for the 2007–2008 season.  In April 2008 it was announced that CBC had cancelled the show.

Heartland (Canadian TV series): Heartland is a Canadian family drama television series which debuted on CBC on October 14, 2007.

Supporting paragraphs: Jessica Steen Heartland (Canadian TV series)
Answer: Jessica Steen