Suggestions by @cartoonmultiverse

Pinkie Pie (EG)

as Sci Pinkie Pie in Tmnt & Mlp: Golden Darkness (Part 5)

Iron Man (Marvel Cinematic Universe)

as Selina Kyle/Catwoman in Tmnt & Mlp: Golden Darkness (Part 5)

Perfuma

as Perfume in Tmnt & Mlp: Golden Darkness (Part 5)

Princess Cadance

as Princess Cadance in Tmnt & Mlp: Golden Darkness (Part 5)

Princess Celestia

as Princess Celestia in Tmnt & Mlp: Golden Darkness (Part 5)

Casey Jones (2012)

as Casey Jones in Tmnt & Mlp: Golden Darkness (Part 5)

Master Splinter (TMNT 2012)

as Master Splinter in Tmnt & Mlp: Golden Darkness (Part 5)

Deadpool (Marvel Cinematic Universe)

as Wade Wilson/Deadpool in Tmnt & Mlp: Golden Darkness (Part 5)

Doctor Doom (Marvel Cinematic Universe)

as Victor Von Doom/Doctor Doom in Tmnt & Mlp: Golden Darkness (Part 5)

Human Torch (Marvel Cinematic Universe)

as Johnny Storm/Human Torch in Tmnt & Mlp: Golden Darkness (Part 5)

Ben Grimm/The Thing (Storyverse)

as Ben Grimm/The Thing in Tmnt & Mlp: Golden Darkness (Part 5)

Wolverine (Marvel Cinematic Universe)

as Logan/Wolverine in Tmnt & Mlp: Golden Darkness (Part 5)

Black Panther (Marvel Cinematic Universe)

as T’Challa/Black Panther in Tmnt & Mlp: Golden Darkness (Part 5)

Beast (X-Men 97)

as Hank McCoy/The Beast in Tmnt & Mlp: Golden Darkness (Part 5)

Captain America (Marvel Cinematic Universe)

as Steve Rogers/Captain America in Tmnt & Mlp: Golden Darkness (Part 5)

Green Lantern (DCAU)

as John Stewart/Green Lantern in Tmnt & Mlp: Golden Darkness (Part 5)

Apple Bloom

as Apple Bloom in Tmnt & Mlp: Golden Darkness (Part 5)

Jazz

as Jazz in Warriors of the Earth: The KeyBlade War

Sweetie Belle

as Sweetie Belle in Tmnt & Mlp: Golden Darkness (Part 5)

Applejack

as Applejack in Tmnt & Mlp: Golden Darkness (Part 5)