He is the son of Bruno Wainer. His sister is Rita Wainer. His grandfather is Samuel Wainer from Bessarabia. Born into a family of artists, he followed his parents' footsteps and became involved in the creative process. In 2010, when he was doing the soap opera Passione, he said that he became an actor by chance. He wanted to study the art of theater to know howto organize the actors on stage, but he got on the small screen. Like most Globo actors and actresses, Gabriel Wainer began his acting career in Malhação as Eduardo Andrade, Edu. He became known nationally for his inter- pretation of this character. After this experience, he wrote three other novels: Desejo Proibido (2007), Ciranda de Pedra (2008) and Passione (2010). Gabriel gave up his acting career and continued his activity in comics. In partnership with Luciano Cunha, he created a project inspired by the Marvel Universe, in which he created a wave of Brazilian superheroes. The first character to come to life is O Doutrinador. This hero appeared in cin- ema in 2019. This production is about Miguel, a federal agent of the "DAE" (Special Army Division), highly trained and expert in weapons. After suffering several trau- mas, he embarks on a personal journey of revenge, assuming the identity of a masked vigilante. The "doctrinaire" decides to take justice into his own hands by exterminating corrupt politicians and entrepreneurs.