Question: What actor from the TV series "Reaper" also played a character named Sam Sullivan?

<P0-S0> Bret Michael Harrison (born April 6, 1982) is an American actor and musician known predominantly for his work on comedy television series such as "Grounded for Life", "The Loop", "Reaper", and "Breaking In". <SEP> <P1-S0> Damon Dark is an independent public access TV series and web series from Australia about a heroic and obsessive investigator of UFO incidents and other strange cases, created by Australian writer, actor and film maker Adrian Sherlock. <P1-S1>  Damon James Dark became a dedicated alien investigator after a close encounter during his teenage years. <P1-S2>  He is associated with both the secret service and friendly aliens, including a character called Vincent Kosmos (an alien time traveller) and Trans-Dimensional Control (an alien law enforcement agency). <P1-S3>  The character of Damon Dark has appeared in a 5-week TV series on Community TV 31 in Melbourne Australia, a self-published novel ("Biodome") on Amazon's createspace platform and a long running web series on YouTube. <P1-S4>  He has also been involved in related web series "Young Damon Dark" and "Vincent Kosmos." <P1-S5>  He has also been the focus of a one actor stage drama. <P1-S6>  The character of Damon Dark has been played by Adrian Sherlock, Bruce Hughes, Aiden Sherlock and Jack Knoll. <P1-S7>  Damon Dark is a loner, dresses in black, has a huge experience of aliens and their technology. <P1-S8>  Damon is characterized by his high intelligence, idealistic moral outlook and wry sense of humor. <P1-S9>  His best friend in the series is the long-suffering Gary Sutton, played by actor Robert Trott. <P1-S10>  Damon Dark began in 1999, with a five-part weekly series on Melbourne's Community TV 31, (although the pilot was shot in 1996 and the show had been in development since 1990) following a screening of a 65-minute version of the story "Maddox" at the 57th World Science Fiction Convention (Aussiecon Three) held in Melbourne. <P1-S11>  The series was later revived as a YouTube webseries which inspired several related webseries, including "The Young Damon Dark Adventures" in which the character is played as a teenager, and Vincent Kosmos, (created by and starring Chris Heaven, , an Italian actor and musician, about a renegade alien character who is a friend of Damon. <SEP> <P2-S0> Burt Gummer is a fictional character, played by actor Michael Gross, from the "Tremors" film series and the short lived SciFi Channel TV program of the same name. <P2-S1>  Appearing in "Tremors", "", "", "", and most episodes of the TV series, Burt Gummer is a firearms enthusiast and a paranoid survivalist. <P2-S2>  He and his former wife, Heather Gummer (played by Reba McEntire), were the first persons in the film series to directly kill a Graboid. <P2-S3>  He has an "overkill" approach to trouble and takes himself deadly seriously. <P2-S4>  Although he is only the central character in "Tremors 3" and the TV series, his eccentric personality has made him a favorite among Tremors fans and the de facto star of the franchise, along with the vicious Graboids who oppose him. <P2-S5>  His ancestor, Hiram Gummer (also played by Gross), appears in "". <P2-S6>  He finds out he has a son Travis B. Welker in Tremors 5 who is the son of the girlfriend he had before he married Heather. <SEP> <P3-S0> The Loop was an American sitcom that ran from March 15, 2006 to July 1, 2007 on Fox. <P3-S1>  The show starred Bret Harrison as Sam Sullivan, a young professional trying to balance the needs of his social life with the pressures of working at the corporate headquarters of TransAlliance Airways, a major U.S. airline. <P3-S2>  Set in the city of Chicago, whose downtown loop area acted as the setting for most of the show. <P3-S3>  The show's theme song is "Hockey Monkey" by James Kochalka Superstar and the Zambonis.