Knock Knock, Who's There? Horror-comedy set in a spooky mansion. Details Casts Posters Title Knock Knock, Who's There? Release Date 1988-01-21 Runtime 01 Hours 36 Minutes Genres Horror Comedy Production Companies Golden Lions Films Production Countries Philippines Joey de Leon... ... Lyka Ugarte... ... Janice Jurado... ... Cheenee de Leon... ... Richard Gutierrez... ... Raymond Gutierrez... ... Val Sotto... ... Jimmy Santos... ... Freida Fonda... ... Ricky Del Rosario... ... Fred Moro... ... Minnie Aguilar... ... Elsie Oliva... ... Pilita Corrales... ... Cristina Gonzales... ... Isabel Granada... ... Eddie Gutierrez... ... Tonton Gutierrez... ... Joey Marquez... ... Chuck Perez... ... Miguel Rodriguez... ... Original Size (500x750)