Heroes from "Trollhunters," "3Below" and "Wizards" join forces to fight a shadowy enemy threatening to take over their worlds — and reset Earth itself. Emile Hirsch, Lexi Medrano, Charlie Saxton, Kelsey Grammer, Fred Tatasciore, Steven Yeun, Cole Sand, Amy Landecker, Jonathan Hyde, Thomas F. Wilson, Lauren Tom, Diego Luna, Tatiana Maslany, Nick Offerman, Nick Frost, Colin O'Donoghue, Alfred Molina, Piotr Michael, Kay Bess, Angel Lin, James Hong Added on Netflix 2021-07-23. Youtube Trailer