Question: Episode 8 was an episode of Twin Peaks that featured the series regular who was also in what 1970s crime drama?

Context articles: Twin Peaks (Utah)
Music of Twin Peaks
Maddy Ferguson
Laura Palmer
Michael Ontkean
The Secret History of Twin Peaks
Soundtrack from Twin Peaks
Episode 8 (Twin Peaks)
Twin Peaks: The Missing Pieces
Twin Peaks: Fire Walk with Me

There are actually two sets of well-known Twin Peaks of the Wasatch Front in Utah.
 "Broad's Fork" Twin Peaks, overlooking the Salt Lake Valley, and "American Fork" Twin Peaks which is located less than five miles to the southeast.
 "American Fork" Twin Peaks is actually the higher of the two, at 11489 ft , and is the tallest peak of Salt Lake County.
 "Broads Fork" Twin Peaks is only 11330 ft and the second highest of Salt Lake County.
 While standing atop either one, the other can easily be seen.
 American Fork Canyon lies on the southern flank of its Twins with Little Cottonwood Canyon to the north.
 Broad's Fork Twins is also flanked by Little Cottonwood Canyon, but to the south and Broad's Fork, a side-canyon of Big Cottonwood Canyon, to the north.
 Deaf Smith Canyon and Ferguson Canyon also make their short courses up the western side of Broad's Fork Twin Peaks.
The music of the American television series "Twin Peaks", its 1992 prequel film "", and its 2017 revival series was composed by Angelo Badalamenti.
 "Twin Peaks"' co-creator David Lynch wrote lyrics for five songs used throughout the series—including "Falling", "The Nightingale", "Into the Night", "Just You" and "Sycamore Trees"—and three songs featured in "Twin Peaks: Fire Walk with Me", including "A Real Indication", "Questions in a World of Blue" and "The Black Dog Runs at Night".
 Julee Cruise, who made cameo appearances in both the series and film, provided vocals for four of Lynch's and Badalamenti's collaborations, and jazz vocalist Jimmy Scott performed on "Sycamore Trees".
 Three of the series' actors—James Marshall, Lara Flynn Boyle, and Sheryl Lee—provided vocals for "Just You".
Madeline "Maddy" Ferguson is a fictional character in the "Twin Peaks" franchise.
 She was created by the series creators David Lynch and Mark Frost and portrayed by Sheryl Lee.
 Introduced in the fourth episode of the first season, Maddy is Laura Palmer's cousin who comes to Twin Peaks to help her aunt and uncle cope with the death of their daughter.
 Over the course of the series, Maddy forms a close friendship with Donna Hayward and James Hurley, Laura's closest friends, and assists them in their investigation into her death.
 Originally, she was not intended to be a part of the series but was created by David Lynch so that Lee could a have a larger role in the series.
Laura Palmer ( ) is a fictional character in the "Twin Peaks" franchise.
 She is portrayed by Sheryl Lee and was created by the series creators David Lynch and Mark Frost.
 She first appears in the ABC original series "Twin Peaks".
 A high school student whose death is the catalyst for the events of the series, Palmer is the protagonist in Lynch's prequel films "" (1992) and "" (2014), which both depict the final week of her life leading up to her murder.
 Laura also appears in the novels, "Twin Peaks: The Return" (2017), and a variety of merchandise based on the series.
Michael Leonard Ontkean (born 24 January 1946) is a retired Canadian actor.
 He is known for the 1970s crime drama "The Rookies", the films "Slap Shot" (1977) and "Making Love" (1982), and the cult-favorite TV series "Twin Peaks" (1990–1991).
The Secret History of Twin Peaks is an epistolary (dossier-style) novel by Mark Frost, which provides background information on the history of the fictional town and characters from the television series "Twin Peaks".
 The book was published in October 2016, several months before the debut of a new season of the series in May 2017.
 A follow-up book, "Twin Peaks: The Final Dossier", also written by Frost, will be released after the new series has aired.
Soundtrack from Twin Peaks (also known as Music from Twin Peaks) is a soundtrack album by the American composer Angelo Badalamenti.
 It was released on September 11, 1990 on Warner Bros.
 Records and is the official soundtrack to the television series "Twin Peaks" (1990–91).
 The series' co-creator David Lynch produced the album alongside Badalamenti and wrote lyrics for several tracks, including the series theme song "Falling".
"Episode 8", also known as "May the Giant Be with You", is the first episode of the second season of the American mystery television series "Twin Peaks".
 The episode was written by series co-creators David Lynch and Mark Frost, and directed by Lynch.
 It features series regulars Kyle MacLachlan, Michael Ontkean, Ray Wise and Richard Beymer; and guest stars Grace Zabriskie as Sarah Palmer, Chris Mulkey as Hank Jennings, Miguel Ferrer as Albert Rosenfield, Don S. Davis as Major Garland Briggs, and Victoria Catlin as Blackie O'Reilly.
Twin Peaks: The Missing Pieces (also known as Twin Peaks: The Entire Mystery) is a 2014 feature length compilation of deleted and extended scenes from "" directed by David Lynch and written by Lynch and Robert Engels.
 Several scenes from "Twin Peaks: Fire Walk with Me" were left unused, to keep the movie at a two hour and fifteen minute running time.
 This film comprises the unused footage from "", piecing together all of the deleted scenes to make a feature length film, featuring the cast of original film including Sheryl Lee, Moira Kelly, David Bowie, Chris Isaak, Harry Dean Stanton, Ray Wise, Kyle MacLachlan, and Mädchen Amick.
 Due to the expanded content, this film shows a closer look into investigation into the murder of Teresa Banks (Pamela Gidley), expands on the last seven days in the life of Laura Palmer (Sheryl Lee), a popular high school student in the fictional Washington town of Twin Peaks, and has scenes that feature characters from the television series that were excluded from "Fire Walk with Me" such as Josie Packard (Joan Chen), Ed Hurley (Everett McGill), and Nadine Hurley (Wendy Robie).
Twin Peaks: Fire Walk with Me is a 1992 psychological horror film directed by David Lynch and written by Lynch and Robert Engels.
 It is a prequel to the television series "Twin Peaks" (1990–1991), created by Mark Frost and Lynch, who were also executive producers.
 The film revolves around the investigation into the murder of Teresa Banks (Pamela Gidley) and the last seven days in the life of Laura Palmer (Sheryl Lee), a popular high school student in the fictional Washington town of Twin Peaks.