Tainá Müller was born in Porto Alegre, south of Brazil.
Graduated in Journalism, she was an MTV reporter for 3 years.
Then, started a career as international model working in Milan, Hong Kong and Bangkok.
In 2005, she decided to move to São Paulo to study acting.
One year later, she starred in her first movie, called "Cão sem Dono" (Stray Dog) and was awarded as Best Actress in two of the most important festivals in Brazil.
Afterwards, she starred in brazilian soap operas and movies.
In 2008 she went to Venice Festival with "Plastic City", another movie that she starred, directed by Yu-Likwai. Recently worked in "Elite Squad 2" and "The Medium's mothers". For this last one she was prized as best supporting actress in Los Angeles Brazilian Film Festival.