Question: how old were the cast of grey's anatomy when it started

title: Grey's Anatomy (season 1)
text: The first season was officially released on DVD in Region 1 on February 14 , 2006 , during the show 's second season . Under the title Grey 's Anatomy : Season One , the box set consists of episodes with Dolby Digital 5.1 surround sound and widescreen format . It also contained extras available only on DVD , including extended episodes , footage from behind the scenes , audio commentaries and unaired scenes cut from the aired episodes . The same set was released in Region 4 on April 26 , 2006 , almost three months after its original release in the United States , whereas its release date in Region 4 was October 11 , 2006 . The UK set contained the original fourteen episodes , being released as a three - disc boxset . The season has not been released on Blu - ray disc in any region . The DVD box set is currently no . 899 in Movies and TV on Amazon.com and no . 3452 in Film and TV on Amazon.co.uk .