She garnered international attention when she joined the main cast of Ally McBeal playing the character of Nelle Porter in 1998. She remained with the show until its end in 2002 featuring in a total of 50 episodes.
She had ex-partner Francesa Gregorini's moniker inked onto her hand while they were dating. She has now had it removed as she is married to Ellen DeGeneres.
Chose the name "Portia" because of her love for Shakespeare.
Portia briefly studied law at the University of Melbourne until giving it up for an acting career.
She got married to Mel Metcalfe in 1996. They divorced in 1999 after just over two years.
She admitted in an interview with The Advocate, most of her family and Ally McBeal castmates learned she was gay through tabloid pictures of her and her then girlfriend in 2001.
She has no trace of an Australian accent, even though she was born and raised down under.
Was offered the role of the makeup artist in Gia.
In 2006, she and Ellen began raising money to help the health crisis in Africa. Through generous celebrity donations they have raised upwards of $400,000.
In 2005, she and Ellen are reported to have bought Brad Pitt and Jennifer Aniston's Beverly Hills house. It was on the market for $20 million.
In 2004 Portia was in the movie Dead & Breakfast.
She and Ellen DeGeneres were ranked 6th on the Forbes Top-Earning Celeb Couples list, with $36 million made in 2009.
Portia was chosen as one of People Magazine's annual 100 Most Beautiful People in the World, Beauty at Every Age section, for age 34, in May 2007.
Sang backing vocals on now ex-girlfriend's Francesca Gregorini's album "Sequel" (2003).
Got the role of Nell Porter on "Ally McBeal" (1997) after Vanessa Marcil was forced to turn it down, due to signing on to "Beverly Hills, 90210" (1990).
Shares a birthday with "Arrested Development" (2003) costar Jessica Walter.
Got her role in Who Is Cletis Tout? (2001) after Sarah Michelle Gellar turned it down.
Longtime romantic partner of comic Ellen DeGeneres.