McClintock began working regularly in television in the late 1990s, booking guest spots before moving into series-regular roles. One of his earliest starring turns came with the NBC sitcom
Stark Raving Mad (1999–2000), which won the 2000
People's Choice Award for Favorite New Television Comedy Series but was canceled after one season. Throughout the 2000s he alternated between regular or recurring parts and a steady stream of guest appearances on series such as
Friends,
Sex and the City,
Felicity, and
The King of Queens. and Special Agent Tim Sullivan on
Bones (2007) During the same period he pursued visual art, designing the cover for
Puscifer's album
"V" Is for Vagina. '' costar
Saul Rubinek McClintock achieved his widest recognition in 2009 when he was cast as Secret Service agent
Pete Lattimer on the
Syfy series
Warehouse 13. His performance on the show was noted for a "goofy charm" that made the character likable. The Los Angeles Times highlighted the series' "flirty fun" tone and credited McClintock's "rugged good looks and crooked smile" with helping to draw record Syfy viewership. He also had a role as the absentee father, Rob, on the Disney+ series
The Mighty Ducks: Game Changers (2021). Since 2020, McClintock has appeared in numerous independent, faith-based, and direct-to-video films. In 2023, McClintock made his feature directing debut with the family drama film
Miracle at Manchester, in which he portrayed the father of a teenager diagnosed with an aggressive brain tumor. In early 2024, McClintock returned to his hometown in Ohio to begin work on a semi-autobiographical film titled
Takedown, based on his high school wrestling years and struggles with family issues, which he wrote and directed. == Personal life ==