[4][5][6] The film features the voices of Adal Ramones, Martha Higareda, Omar Chaparro, Angélica Vale, Eduardo Manzano, and Jaime Maussan.

[7] Gabriel also mentioned the idea of the story is based on the real-life economic problems occurring in Mexico, and how the citizens in the film were "immune" to the Martians.

[7] "One day[,] my brother (Rodolfo) and I were talking about how the country was bad in every way: corruption, politics, everything, we told ourselves that something very big must happen to create awareness," said Gabriel.

[7] "We began to present the script and suddenly[,] this happened: [...]everything we suffer would make us immune to Martians, and NASA even sends a mission to Mexico.

"[7] Adal Ramones, who portrays protagonist 'El Chacas', shared more details on the economic issues of the country and how the characters in the film would not save Earth in a traditional formula.

"My character is called (or nicknamed) 'Chacas', and he's literally a neighborhood boy who along with other people who represent various stereotypes of the Mexican, are recruited to fight against the aliens that have already invaded the entire world, except our country," said Ramones.

"[8] The Mexican actor had previous voice-acting experience in other animated films, such as the Spanish-language version of Pixar's A Bug's Life, and Animex's El Americano.

[13] Other talents include Omar Chaparro, who previously collaborated with Huevocartoon for Un gallo con muchos huevos, Eduardo Manzano, and ufologist Jaime Maussan, among others.