Dean Haglund (born July 29, 1965) is a Canadian actor, known for the role of Richard "Ringo" Langly, one of The Lone Gunmen on The X-Files.

In addition to The X-Files, he played the voice of Sid in Tom Sawyer, Haglund also portrayed Langly in the spin-off The Lone Gunmen, which aired thirteen episodes in 2001.

[3] After his roles on X-Files and The Lone Gunmen, Haglund appeared briefly in a documentary-style production called "From Here to Andromeda", released in 2007.

[6] He was on the advisory board of Sci-Fest, the first annual Los Angeles Science Fiction One-Act Play Festival, held in May 2014.

[8] Haglund's relocation to Australia nearly resulted in the removal of a planned cameo by the Lone Gunmen in the episode "Babylon" of the revived tenth season of The X-Files.