In the coming weeks, Grey's Anatomy fans will spot a familair face. Sarah Utterback is reprising her memorable role as Nurse Olivia Harper during Season 14 episode 21, which is scheduled to air April 26. Die-hard fans will remember Sarah's character as a nurse at the since-renamed Seattle Grace Hospital during seasons one through six. Her claim to fame? She slept with with George O'Malley (Rip), giving him the syphilis she contracted after sleeping with former bad boy Alex Karev. Good times. According to Entertainment Weekly, Olivia has grown a lot since her time at the Seattle hospital. So, when she returns with her son, it throws both Alex and his new fiancée Jo Wilson for a loop. We don't know the exact age of her son, but judging from EW's plot description for the episode, Alex will at least wonder if he's the father. Although, fans are already pointing out that...