Igor Fernandez began his career in theater and circus at the age of seven and has remained active on stage ever since. His screen credits include Corrida dos Bichos, directed by Fernando Meirelles. He is part of the cast of the HBO Max series Máscaras de Oxigênio (não) Cairão Automaticamente, created and directed by Marcelo Gomes and Carol Minêm, and has a leading role in the Netflix series Os Donos do Jogo, directed by Heitor Dhalia.

For TV Globo, he appeared in Cara e Coragem, an International Emmy-nominated telenovela, and played one of the young leads in Bom Sucesso. He has also been part of other award-winning productions, including the acclaimed series Sob Pressão.