Avengers: Guardians of Earth

 was a Canadian animated action-adventure-science fiction superhero television series based on  by Marvel Comics, being developed by TBD. It was produced by WildBrain, Marvel Animation and Disney Television Animation and it aired on Teletoon in Canada and Disney XD in the United States from May 12th, 2014 to December 18th, 2019.

Synopsis
The Earth's mightiest heroes unite to protect Earth from various dangerous threats.

Main

 * Tony Stark/Iron Man (voiced by Kirby Morrow) - a charismatic billionaire who wears various robotic armors and leads the Avengers.
 * Steve Rogers/Captain America (voiced by Samuel Vincent) - a war veteran who got stuck in ice for over eighty years as he is now trying to adjust life in the modern era.
 * Thor Odinson (voiced by Ian James Corlett) - an Asgardian who got banished to Earth for being immature as he now swears to protect it until his last dying breath.
 * Dr. Bruce Banner/Hulk (voiced by ) - a scientist who mutates into an uncontrollable green beast that is allied with the Avengers.
 * Namor McKenzie/The Sub-Mariner (voiced by Scott McNeil) - the king of Atlantis who joins the Avengers to keep peace between Atlantis and the surface world.
 * Carol Danvers/Ms. Marvel (voiced by Emilie-Claire Barlow) - a military pilot who after being exposed to Kree energy, becomes an Avenger capable of flight.

Later additions

 * Dr. Hank Pym/Ant-Man (voiced by Trevor Devall) - TBD
 * Janet van Dyne/Wasp (voiced by Kelly Sheridan) - TBD
 * Wanda Maximoff/Scarlet Witch (voiced by Britt McKillip) - TBD
 * Vision (voiced by ) - TBD

Supporting

 * S.H.I.E.L.D., consisting of:
 * Col. Nicholas "Nick" Fury (voiced by Clé Bennett) - the mysterious and paranoid commander of S.H.I.E.L.D. who is known for trusting nobody.
 * Natasha Romanoff/Black Widow (voiced by Tabitha St. Germain) - TBD
 * Dum Dum Dungan (voiced by TBD) - TBD
 * TBD

Antagonists

 * A.I.M., consisting of:
 * George Tarleton/M.O.D.O.C. (voiced by Mark Oliver) - a mad former Stark Industries employee who becomes the genetically modified leader of A.I.M.
 * Monica Rappacini (voiced by Nicole Oliver) - TBD
 * The Super Adaptoid (voiced by TBD) - a dangerous robot developed by M.O.D.O.C. who can copy the abilities of Avengers.
 * Doomsday Man (voiced by Michael Dobson) - a robot designed by Stark Industries to prevent alien invasions as he gets hacked by M.O.D.O.C.
 * Ultron (also voiced by Kirby Morrow) - an android developed by A.I.M. to frame Iron Man for the crimes it committed who ends up gaining intelligence and believes all of humanity is inherently evil and they either need to be extinct or to be converted into machines.

Trivia

 * The series tries to be less dependent of the MCU and more akin to the comics, although still adding some original elements and TBD.