A few seasons later, Austin Nichols joined the cast of One Tree Hill to play Sophia Bush's love interest, Julian. In real life, however, they have pretty tight-lipped about their hookups — and all of them were married or in serious relationships during the duration of the show.

In real life, they’ve been friends for more than 20 years. She was 31 years old when the series first started, a little older than quirky alter-ego Phoebe’s age of 27-28 years old. Here's who all the "Gossip Girl" stars are dating in real life. From Blake Lively to Penn Badgley.

Like Rachel, her birth date changes over the course of the show – she states early on that she was born on February 16th, but in a later episode Joey suggests that Phoebe’s birthday is around Halloween.

Penélope says that when they hadn’t had children yet, they used to call each other “eggs” (or huevos in Spanish) because they used to sleep a lot as if they were eggs in a nest. Lisa Kudrow was the oldest cast member to star in Friends. We now know, however, that at the time he joined the cast, Bush and Nichols had already been linked romantically. These beauties played partners who became friends in the film Bandidas. Friends (TV Series 1994–2004) cast and crew credits, including actors, actresses, directors, writers and more.