UNDERTALE: The Animated Series

"UNDERTALE: The Animated Series" is an animated adaption of Toby Fox's game "Undertale". It features the voices of Nikki Castillo, Mae Whitman, Antonio Raul Corbo, and many more.

Seasons/Arcs
Season One (Pacifist Arc): According to Toby Fox, Season 1 is the canon story. This season follows Frisk traversing the Underground with their ghost "guide" and companion Chara. Will Frisk's determination be enough to help them survive?

Season Two (Genocide Arc): The "fan service" season according to Toby Fox. Frisk is no longer a child with a heart of gold. They are a child that sees no good reason for any monsters to exist at all, leading to their murderous rampage in the Underground. Will any monsters survive?

Season Three (Dreemurr Arc): The story of Chara, the first fallen human, and their life in the Underground before that fateful day.

Season Four (Scientist Arc): This season focuses on Alphys' creation of the Amalgamates.

Season Five and onwards (Surface Arc): The sequel to the Pacifist Arc according to Toby Fox. Follow Frisk, Chara and Asriel as they and the rest of the cast return to the surface and pursue their dreams.

Season Six: Sans is plagued with nightmares of the Genocide Route (which, even though it didn't canonically happen, Sans still has knowledge of.

Season Seven:

Main
Nikki Castillo as Frisk

Hailey as Chara

Antonio Raul Corbo (young) and Johnny Yong Bosch (God of Hyperdeath) as Asriel

Alex Rybitski as Flowey

Lindsay Bolin as Toriel

Daniel Wagner as Asgore

Edbee/Ace the Hero as Sans

Darby Cupit as Papyrus

Austin Ahjumma as Undyne

Alex Beckham as Mettaton

JessiCassette as Alphys

Supporting
Tsukikokaze as Monster Kid