Izzie Stevens

Background
Before the start of Season 1, Izzie lived in a trailer with her mother who nicknamed her "Cricket". As a teenager, Izzie worked as a waitress and had savings for college but her mother spent most of the money on psychics. This forced Izzie to pay most of the bills with her own money. This is the cause of their estranged relationship. When Izzie turned 18 she left home.

Izzie payed for medical school by modeling for a fictional designer, "Bethany Whisper".

In Season 2, after meeting a girl from her hometown, it is revealez that Izzie gave birth to a daughter who she subsequently gave up for adoption. Izzie privately named her daughter Sarah but her adoptive parents named her Hannah. Later, Izzie donated bone marrow to Hannah who was suffering from leukimia.

Season One
At the start of Season 1, Izzie moves in with fellow interns, Dr.Meredith Grey and Dr. George O'Malley.