Having a university degree both in math and economics, Nicholas went on to start her life as hosts for many multinational companies like L’Oreal. However, moving into the acting domain has gained her success in life. At the very first audition, she has been able to get a role in the ‘Sex and the City’ (1998) through her ambient look. Though she does not get the full attention from this show as required for her success in acting life, she has been able to get the chance and made her debut as an actress in the 2003 film  ‘Dumb and Dumberer: When Harry Met Lloyd’. Her artistic and benevolent character portrayed in this film has helped her to gain in the film industry.

The  good luck of Nicholas continued with her in the next films and television shows she has done. She plays the role of the protagonist in the television series The Inside (2005). Unfortunately, this show got cancelled after the continuation of one single season. However, the luck was still with her. She gained great acclaim by playing the role of Rachel Gibson in the television series Alias and continued her successful journey with the horror film ‘The Amityville Horror’ (2005).

Having a faithful luck, this American born actress continued the successful filming career with roles in films like ‘P2’, a horror-thriller film released in 2007. She has even starred in the films like ‘The Sisterhood of the Traveling Pants 2’ (2008), ‘G.I. Joe: The Rise of Cobra’ (2009) ‘Star Trek’ (2009), ‘Continuum’ (2012–15). In the television series ‘Criminal Minds’ (2010-2011), she portrayed the role of the protagonist and eventually becomes one of the best known faces in the American television industry.

By working on many high profile Hollywood films and American television serials, she has become famous and like all other celebrities, she has her own Instagram and Twitter account managed by her. Recently, via Twitter she provided the news of her engagement with boyfriend Michael Kershaw. The news instantly goes viral and many good wishes came out for her. For the treatment that she receives as tweets from the fans, she takes on the Twitter to thank the fans.  This American actress after sharing the news of her engagement with the boyfriend Michael uses the social networking sites like that of Instagram and Twitter to share their pictures together. In fact, the picture came out on 1 January 2014 after saying yes to Michael at Grand Central Station was amazingly cute.

Other than the actress Rachel Nichols, there is another Rachel Nichols, who works as a journalist and now hosting the ESPN wiki sports programs. People gradually mistake to distinguish between the two though they work in two different fields.