Scott K. Irwin was an American professional wrestler. He was best known for his tag team with his brother Barney "Bill" Irwin.

After training under Verne Gagne in 1975, Irwin debuted for the AWA on March 13, 1976 in Davenport, Iowa, going to a time limit draw with another rookie, Dick Blood (in one of his first matches), later to become famous as Ricky Steamboat. He mainly wrestled preliminary matches until June 1976 when he left for Georgia Championship Wrestling where he stayed until the spring of 1977. From there he went on to Jim Crockett's Mid Atlantic Championship Wrestling. After wrestling in Mid-Atlantic throughout the rest of 1977 and in early 1978, Irwin debuted in the World Wide Wrestling Federation on March 14, 1978 as one half of The Yukon Lumberjacks, where he was given the ring name "Lumberjack Eric" and his tag team partner, Zarinoff Lebeouf, was given the ring name "Lumberjack Pierre". Soon after debuting, The Lumberjacks wrestled against Dino Bravo and Dominic DeNucci for the WWF Tag Team Championship on June 2, but the match ended in a double disqualification.[4] The Lumberjacks continued their feud with Bravo and DeNucci, and after several unsuccessful title rematches, the Lumberjacks finally defeated them for the title on June 26.

The Lumberjacks continued their success by retaining their title in several matches over the next several months against the likes of Bravo and DeNucci, Gorilla Monsoon and S.D. Jones and Haystacks Calhoun and Tony Garea. On November 21, The Lumberjacks lost their title Garea and Larry Zbyszko. After the title loss, Pierre retired from wrestling and Eric left the WWWF.

After leaving the WWWF, Irwin debuted in Championship Wrestling from Florida in December 1978 as "Thor the Viking", with Oliver Humperdink as his manager. While in FCW, Irwin found championship success and wrestled his final match as Thor on October 14, 1979, with a victory over Steve Keirn. The following month, Irwin returned to the CWF as the masked "Super Destroyer", and went on to win a tag team match with Stan Lane against Keirn and Mike Graham.

Irwin continued to use the Super Destroyer character in the CWF throughout the rest of 1979 before debuting in Mid-South Wrestling on November 27, 1980, in a losing effort to Ted DiBiase. Irwin, as the Super Destroyer, returned to Mid-South on April 18, 1981, and won the tag team championship with the Grappler after defeating Dick Murdoch and the Junkyard Dog in the finals of a tournament to claim the vacant title. However, the Destroyer and the Grappler lost the tag team title days later to Murdoch and JYD, on April 27. Soon after the title loss, Destroyer rebounded by winning the Louisiana Heavyweight Championship on May 1. He held the title for over two months before losing it to Bob Roop on July 22. Irwin continued to perform as the Super Destroyer upon joining the Continental Wrestling Association, and soon formed a successful tag team with the Masked Superstar.