Guillermo Callahan's Filmography on TV
List of programs starring Guillermo Callahan on tv. Programs are sorted in order of last seen on tv. Last updated: Dec 20, 2025 7:15 AM
1974 - The Possession of Altair (2018)
A newlywed couple disappeared in 1974, their 8mm tapes reveal one of the most horrifying events in Mexican history.