Jonathan GeffnerWritingBiographyJonathan Geffner is a professional ventriloquist, as well as a pianist, screenwriter, Yiddish teacher/translator, martial artist and a few other things.Recent & Upcoming3.5The Dummy DetectiveDetective Van Trillo • Nov 2025Known For3.5The Dummy DetectiveDetective Van TrilloPhotos of Jonathan GeffnerFilmographyMovies1TV Shows0AllCast1Crew1Browse All2020s3.5The Dummy DetectiveDetective Van Trillo
