UNDERRUINS (or simply known as Underruins) is a 2019 fantasy adventure computer-animated film that is based on the 2015 critically acclaimed role-play video game of the same name by Toby Fox. It is the prequel to the successful movie known as 'Undertale' or 'Undertale: The Movie'. It was produced by DreamWorks Pictures and distributed by Universal Pictures and 20th Century Fox.


[When the synopsis is done development]


Years ago, two races ruled over the Earth as equals: human and monster. One day, a war broke out between them and, after a long series of battles, the humans were victorious. The humans sealed the monsters to the Underground with a magic spell, while the humans took control of the surface. However, the barrier is not a perfect seal, and the only point of entrance to the Underground is Mount Ebott...

When a child named Chara decided to climb Mount Ebott and decided to explore, the genderless child accidentally fell into a hole into the underground where the monsters lived... An anthropomorphic goat child named Asriel saw them and brought them home.

Still in Development


  • Hynden Walch as Chara. The first human to fall down the underground. Chara is also the main protagonist of the prequel.
  • John DiMaggio as Flowey, a talking flower which was revealed as the main antagonist in the film until it turned out that it was actually Asriel who was trapped inside of Flowey.
  • Max Charles (normal) and Kirk Thornton (boss form) as Asriel, a biological child of Toriel and Asgore and the true main antagonist of the prequel.
  • Glenn Close as Toriel, the second character encountered in the prequel. She is like Chara's early mother.
  • Phyllis Smith as Alphys, An independent scientist who tries to make a present for Asgore by putting Asriel's Determination inside a sunflower making Flowey.
  • J.K. Simmons as Asgore, The royal king. He is considered to be the early father of Chara and Asriel.


When it's complete


When it's complete

Critical response

When it's complete

Box office

When it's complete

Awards Edit

When it's complete


Main article: Underruins (Soundtrack)


Main Transcript

Main article: Underruins/Transcript

Trailer Transcripts

Main article: Underruins/Trailer transcripts

Coming soon!


Coming soon!


Main article: Underruins (Credits)
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