7 Musim
156 Episod
Once Upon a Time - Season 4
- Tahun: 2018
- Negara: United States of America
- Genre: Drama, Sci-Fi & Fantasy
- Studio: ABC
- Kata kunci: magic, fairy tale, fantasy world, based on fairy tale, storybook, false memory
- Pengarah: Edward Kitsis, Adam Horowitz
- Pelakon: Lana Parrilla, Colin O'Donoghue, Robert Carlyle, Gabrielle Anwar, Dania Ramirez, Mekia Cox