He began his career on TV, three years later, but gained national notoriety after portraying Captain Herculano in the soap opera Cordel Encantado (2011), Mundo in Joia Rara (2013), and Miguel in Sete Vidas (2015).
"[3] In 2016, Montagner portrayed Santo dos Anjos, the protagonist of the soap opera Velho Chico, broadcast by Rede Globo, his last work.
[7] Montagner was a second lieutenant in the Brazilian Army and after leaving military service graduated in physical education, teaching in the 1980s in public and private schools in São Paulo.
He also participated in the show Divã, portraying Carlos Alencar, the lover of the protagonist Mercedes, played by actress Lília Cabral.
[10] In the same year, he played in Salve Jorge the Turkish tour guide Zyah, who falls in love with Bianca, Cléo Pires' character.
[18] In 2013, the family moved to Rio de Janeiro,[18] but settled in Embu das Artes, in Greater São Paulo, about 25 kilometres (16 miles) from the capital, in a quiet fenced residential condominium with their three sons.
[20][21] According to reports the Legal Medical Institute (IML) of Sergipe, the result of the autopsy performed Montagner's body pointed out that the actor died of mechanical asphyxia by drowning.
[24] Weeks prior to the casualty, Rede Globo aired a scene where Santo would be saved by Indians, who found him unconscious floating on the São Francisco River, having been shot by his enemy.