
Knock Knock
- Vuosi: 1940
- Maa: United States of America
- Genre: Animaatio, Komedia
- Studio: Walter Lantz Productions
- Avainsana: roof, cartoon bear, irritation, cartoon bird, noise, cartoon panda, cartoon woodpecker
- Johtaja: Alex Lovy, Walter Lantz
- Heittää: Sara Berner, Mel Blanc