Hollywood’s greatest superheroes flew to Brazil’s elections on Friday as the “Avengers” answered calls for help from supporters of presidential challenger Luiz Inacio Lula da Silva.

Actors behind some of the most popular characters in the Marvel Cinematic Universe took to the Portuguese-language Twitter to encourage Brazilians to cast their votes in Sunday’s knife-edge poll.

“Hunger in Brazil is not fiction, but it can end. Listen to our brothers, vote next Sunday,” read a Portuguese tweet from actor Samuel L. Jackson, who plays Nick Fury in the mega-franchise.

Jackson was responding to a tweet from Brazilian comedian Fabio Porchat asking for the Avengers’ help in the presidential duel between right-wing incumbent Jair Bolsonaro and the former president popularly known as Lula.

Lula, who won the first round last month, is a slight favorite over Bolsonaro, a hate figure for environmentalists for his support of logging and mining companies blamed for the destruction of the Amazon.

“Here the villains are the empty grocery bags, the guns arriving at the schools, the lack of medicines at the pharmacy… This really is work for superheroes. Can anyone hear me?” wrote Porchat, who declared his vote for Lula.

“I’m listening to you here,” Jackson replied in Portuguese, adding the hashtag #notallheroeswearcapes and urging his colleagues to join the fight.

Iron Man, Thor, Hulk and Wong answered the call immediately.

“We are with you on this mission,” Chris Hemsworth replied in Portuguese to Juliette, a Brazilian celebrity.

“Brazilian Avengers this Sunday you all have the power to vote, something more powerful than any gavel,” the Thor actor added.

“With access to quality education, all children can have a better future. Don’t wait for it. Vote for it,” Iron Man Robert Downey Jr. tweeted, also in Portuguese.

“We are united against oppression!” wrote British actor Benedict Wong, who plays the magician Wong in the series.

“Our sorcerers are working to protect all who mobilize this Sunday to decide their future.”

Mark Ruffalo, who last month called on Brazilians to cast their votes for leftist Lula, referenced his Hulk character in his tweet.

“Real science makes us stronger, as Bruce Banner proves,” he wrote.

Ruffalo, who has praised Lula’s position on tackling climate change, added: “Please vote for open, brave minds and strong, healthy families on Sunday.”