Alexis Denisof is an American actor who is primarily known for playing Wesley Wyndam-Pryce in the television series "Buffy the Vampire Slayer" and its spin-off "Angel."

Beginning his career in the film industry, Denisof was the fight director for a stage production of "Hamlet," and in 1991 was the fight director for the BBC's "The Other Side," "Romeo and Juliet" and "The Soul's Dark Night." Alexis' first lead was alongside Christopher Lee in the feature film "Murder Story" where he played an investigative reporter. Following those roles, Denisof would later work with Sean Bean in three episodes of "Sharpe" as Lord John Rossendale in 1997.

His best-known character, Wesley Wyndam-Pryce, was first introduced in 1999 to season 3 of "Buffy the Vampire Slayer" as Buffy's replacement Watcher.He later showed up in season one, episode 10 of "Angel," and was an official main cast member from episode 11.

In 2011, Denisof had a recurring role in "How I Met Your Mother," as Sandy Rivers.

Since 2011, Denisof has been relatively active. He played a voice role in the animated DC movie "Justice League: Doom." He was featured in the majority of episodes in the AOL webseries, "Little Women Big Cars." Denisof was then cast as a lead in Bryan Singer's new webseries "H+: The Digital Series." He then reunited with Joss Whedon for two different film projects. The first was a minor role in the summer blockbuster "The Avengers," as The Other, a servant to the character Thanos, and a cohort of Loki. The second was the lead male role in a modern version of Shakespeare's "Much Ado About Nothing," which premiered at the Toronto Film Festival, to positive reviews from critics.

In August 2013 he was cast in the third season of NBC's "Grimm" as a recurring character named Viktor Albert Wilhelm George Beckendorf. In 2014, Denisof reprised his role as the Other in "Guardians of the Galaxy." In the same year he began starring in the television series "Finding Carter" as David Wilson.