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. The production has UFOs and extraterrestrials as a central theme. On October 30, 2009, he hosted Ghost Adventures Live on the Travel Channel. In a throwback to X-Files, Dean appeared in episode 95 of Bones as restaurant owner Blaine Miller in Roswell where Booth and Bones are sent to investigate a possible extraterrestrial sighting. He was on the advisory board of Sci-Fest, the first annual Los Angeles Science Fiction One-Act Play Festival, held in May 2014.