User blog comment:MarvelDCandFantasyFanBoy12/Third Party Thingy/@comment-3004323-20201025204427/@comment-24839525-20201025210458

Sonic:

Character: Grower - a giant sentient plant who has been trying to eat Mobians and grow to a big size.

Episode: I'm Better Than You - Metal Sonic decides to hunt after Sonic and try to kill him to prove he is better than him.

ThunderCats: Mesmerizer - a mysterious wolf who works for Mumm-Ra and is capable of mind control.

Episode: The Swamp - the ThunderCats venture into a swamp as they meet a strange hermit cat and they work together to stop a mink scientist.

Daffy:

Character: Bosko - a strange hermit magician who is the most powerful one alive.

Episode: The Quest - Daffy finds a pig named Porky as he decides to help him and mentor him to be great.

Zatanna:

Character: Alec Holland/Swamp Thing - a nature themed hero who is a close ally to Zatanna.

Episode; Swamp Trouble - Doctor Destiny arrives to a swamp to harness its energy as Zatanna works with the guardian of the Swamp, Swamp Thing.

Next:

Character: Tirek - an old threat to the original mane six who is trying to return.

Episode: Tirek's Return - Tirek gets freed by Shadow as he begins terrorizing and conquering Equestria.

Crash:

Character: N. Apocalypse - a brainwashed Coco from an alternate dimension who is sent to defeat the main Crash.

Issue: N. Apocalypse Strikes - Crash meets a mysterious figure known as N. Apocalypse as he tries to decipher who he or she is.