Greys Anatomy - Season 12 Here

: Tension peaks when Callie’s new girlfriend, Penny, is revealed to be one of the doctors who failed to save Derek. Penny eventually joins the hospital as a resident, causing friction with Meredith and Amelia. Relationship Turmoil :

: The couple's marriage collapses, leading to a divorce. However, they discover April is pregnant shortly before signing the papers. Greys Anatomy - Season 12

: Alex proposes multiple times, but Jo repeatedly declines because she is secretly still married to an abusive man she fled years prior. Cast Transitions : Tension peaks when Callie’s new girlfriend, Penny,

: This season marked the final regular appearance of Sara Ramirez as Callie Torres. Reception & Ratings However, they discover April is pregnant shortly before

: Martin Henderson joined the cast as Dr. Nathan Riggs, whose arrival triggers a dark history for Owen Hunt involving his missing sister.