Moraes was born Aline Cristine Dorelli de Magalhães e Morais in Sorocaba, São Paulo on 22 December 1982. Before becoming an Actress, she worked as a fashion model, in which she started working at the age of 12 and retired at 18. As a popular Actress in Brazil, she was named as one of 100 Sexiest Women in the World 2004 (or As 100 Mulheres Mais Sexy do Mundo 2004 by VIP magazine internet poll. Besides appearing in VIP magazine, she has also appeared in magazines such as Claudia magazine, Nova, UMA, Marie Claire, Trip magazine, Boa Forma, and Elle Brasil.
Her first work as an Actress was on the telenovela Coração de Estudante, where she played a young unmarried mother. In 2003, in Mulheres Apaixonadas she played Clara, a gay teenager. In 2004, she starred in the telenovela Da Cor do Pecado, she co-starred as Moa, a brain tumor patient. Between 2004 and 2005 she played her first lead role in Como uma Onda as Nina, a woman whose affections are sought after by two men: her boyfriend, Jorge Junqueira, and Daniel Cascaes, a Portuguese man. In 2006 she starred in the film Fica Comigo Esta Noite which is an adaptation of a Flávio de Souza's play. In the telenovela Bang Bang, she played the role of Penny Lane, a scholar of advanced physics.
Between 2004 and 2007 she had a relationship with actor Cauã Reymond. In 2010, she ended her one-year and a half relationship with the bartender and businessman Rodrigo Mendonça.
Between 2007 and 2008, Moraes played one of her most remarkable characters: the villain psychopath Maria Silvia, in the Rede Globo's primetime telenovela Duas Caras. It was her first villain character for the Actress, her character was one of the major factors that boosted the audience of the Aguinaldo Silva's telenovela.
In 2009, she portrayed a prostitute in the film Os Normais 2 – A Noite Mais Maluca de Todas, which was the second film in the series originally starred by Luiz Fernando Guimarães and Fernanda Torres.
In 2010, Moraes received the title of citizen emeritus of Sorocaba, in recognition of her work in film, theater and television.
Moraes played Queen Cristina in the 2011 telenovela Cordel Encantado, and in the same year she played Lili in the telenovela O Astro. Moraes played Silvia in the film Heleno.
On 8 May 2014, Moraes and boyfriend Mauro Lima, a Brazilian filmmaker, welcomed their first son, Pedro.
In 2016, she played the attractive Diana, Gui's ex-wife in Rock Story.
