Invincible: Viltrimuites: Titans of Space

Invincible: Viltrimuites: Titans of space is a special prequel episode focusing on a original backstory of the Viltrimuites.

Premise
In this special prequel film, set before the events of Season 1, the Viltrimuites evolve to expand their forces, when they become the perfect arms race, they discover their victories come at a cost.

Cast
Frank Welker as Argall

Peter Cullen as Thaddeus

Helen Slater as Advance

Javier Bardem as Conquest

Jamie Lee Curtis as Thula

Jeffery Dean Morgan as "Viltrimuite Warrior"

IronE Singleton as Lucan

Neil Patrick Harris as Kregg

Danielle Panabaker as Sandra

Zelda Williams as Anissa

Yuri Lowenthal as Fury

Laura Bailey as Laraa

Phil Mlarr as Drecc

Steve Blum, Fred Tasticore, Khary Payton, Kari Walhgrin, Grey Griffin as Generic Viltrimuite Grunts, Royal members

Steve Blum as Space Racer

Tony Todd as Battle Beast's Father

George Newbern as King Quintessa

Development
It was announced after season 2, a new spinoff film was to be in production. It was decided on a original take on the Viltrimuites, including adding more original viltrimuite characters. The special film would run for 50 minutes, and center around the planet viltrium. An original story of how the Viltrimuites had established a perfect utopia before and after the "great purge", the film would also center around after the viltrimuites expansion, and have further expansive storylines of characters like Conquest, Thula, and Kregg, including a future villian for the season.