Original host Leon W. Grant had a small cameo in A Gangue da Pesada (1979). Marcelino Sánchez and Ginny Ortiz had roles in Warriors - Os Selvagens da Noite (1979).
In one Bloodhound Gang case, the medium is supposed to be channeling an extraterrestrial being, not a ghost or spirit. It was a television first.
A special four-part Bloodhound Gang segment involved the Institute for the Study of Identical Twins. The director's twin brother portrayed the villain. It was either an ad for the Institute or intended to air as a separate show for copyright purposes.