Teetin Villanueva. Teetin Villanueva was >> in My Letters To Happy as 'Marga'.Charo Soriano. Charo Soriano was >> in My Letters To Happy as 'Psychiatrist'.Shamaine Buencamino. Shamaine Buencamino was >> in My Letters To Happy as 'Speaker'.Mara Paulina Adlawan Marasigan. Mara Paulina Adlawan Marasigan was >> in My Letters To Happy Pertee Briñas. Pertee Briñas was >> in My Letters To Happy as 'Screenplay, Director'Gabrielle A. Cuyco. Gabrielle A. Cuyco was >> in My Letters To Happy as 'Executive Producer'Kent C. Cuyco. Kent C. Cuyco was >> in My Letters To Happy as 'Executive Producer'Maki Sarmiento. Maki Sarmiento was >> in My Letters To Happy as 'Line Producer'Theo Lozada. Theo Lozada was >> in My Letters To Happy as 'Cinematography'Marco Limjap. Marco Limjap was >> in My Letters To Happy as 'Cinematography'Shari Marie Montiague. Shari Marie Montiague was >> in My Letters To Happy as 'Production Design'