Suggestions by @aaronpirela

Squidward

as Loki (2012 Timeline) in If Nickelodeon characters played Avengers: Endgame

Manny Rivera

as Peter Parker / Spider-Man in If Nickelodeon characters played Avengers: Endgame

Rachel Bighead

as Wanda Maximoff / Scarlet Witch in If Nickelodeon characters played Avengers: Endgame

Carl Wheezer

as Harold "Happy" Hogan in If Nickelodeon characters played Avengers: Endgame

Cindy Vortex

as Pepper Potts / Rescue in If Nickelodeon characters played Avengers: Endgame

Zuko

as Bucky Barnes / Winter Soldier in If Nickelodeon characters played Avengers: Endgame

Gerald Johanssen

as Sam Wilson / Falcon in If Nickelodeon characters played Avengers: Endgame

Karai (2012 TV Series)

as Gamora in If Nickelodeon characters played Avengers: Endgame

Danny Phantom

as Stephen Strange / Doctor Strange in If Nickelodeon characters played Avengers: Endgame

Manny Rivera

as T'Challa / Black Panther in If Nickelodeon characters played Avengers: Endgame

Sebastian Stan

as Casey Jones in Nickelodeon Action Cinematic Universe

Zendaya Coleman

as Princess Vega in Nickelodeon Action Cinematic Universe

Dana Terrace

as MIMI in Nickelodeon Action Cinematic Universe

Kate McKinnon

as Tak in Nickelodeon Action Cinematic Universe

Key And Peele

as The Almighty Tallest in Nickelodeon Action Cinematic Universe

Xolo Maridueña

as Django of the Dead in Nickelodeon Action Cinematic Universe

Antonio Banderas

as Sartan of the Dead in Nickelodeon Action Cinematic Universe

Benjamin Bratt

as Mister Gobbler in Nickelodeon Action Cinematic Universe

Diego Luna

as El Volturo in Nickelodeon Action Cinematic Universe

Rhenzy Feliz

as Black Cuervo in Nickelodeon Action Cinematic Universe