Amanda leidt samen met haar dochter een rustig leven op een Amerikaanse boerderij. Maar als de overblijfselen van haar vervreemde moeder arriveren vanuit Korea, wordt Amanda achtervolgd door de angst om in haar eigen moeder te veranderen.
Nee, helaas is Umma nog niet beschikbaar op Netflix in Nederland.
| Production | Zhou Tao | Executive Producer |
| Production | Yedong Mu | Executive Producer |
| Production | André Øvredal | Executive Producer |
| Production | Cheng Yang | Executive Producer |
| Art | Lee Yong-ok | Production Design |
| Costume & Make-Up | Leah Butler | Costume Design |
| Art | Kyle Davio | Set Dresser |
| Sound | Rob Marshall | Sound Re-Recording Mixer |
| Production | Nancy Nayor | Casting |
| Costume & Make-Up | Jose Zamora | Hair Department Head |
| Costume & Make-Up | Casey Nguyen | Set Costumer |
| Costume & Make-Up | Erica D. Schwartz | Costume Supervisor |
| Visual Effects | Andrew Roberts | Visual Effects Supervisor |
| Visual Effects | Christine McDermott | Visual Effects Producer |
| Visual Effects | Maricel Pagulayan | Visual Effects Producer |
| Editing | Kevin Greutert | Editor |
| Art | W. Haley Ho | Art Direction |
| Sound | Roque Baños | Original Music Composer |
| Editing | Louis F. Cioffi | Editor |
| Art | Demetrios Katsantonis | Set Dresser |
| Art | Ksenia Markova | Art Direction |
| Sound | Marti D. Humphrey | Sound Re-Recording Mixer |
| Camera | Matt Flannery | Director of Photography |
| Costume & Make-Up | Maggie Fung | Makeup Department Head |
| Art | Cliff Collins | Set Dresser |
| Costume & Make-Up | Zulma Zamora | Key Hair Stylist |
| Crew | Michael Clear | Thanks |
| Writing | Iris K. Shim | Writer |
| Costume & Make-Up | Christopher Allen Nelson | Makeup Effects Designer |
| Crew | Linda Jewell | Stunt Double |
| Sound | Biko Gogaladze | Foley Artist |
| Directing | Phil DeSanti | Second Second Assistant Director |
| Visual Effects | Andrew Degryse | VFX Artist |
| Production | Peter Luo | Executive Producer |
| Production | Marcei A. Brown | Executive Producer |
| Production | Jeanette Volturno | Executive Producer |
| Directing | Iris K. Shim | Director |
| Production | Sandra Oh | Executive Producer |
| Production | Zainab Azizi | Producer |
| Production | Sam Raimi | Producer |
| Production | Matt Black | Executive Producer |
