Each member of the Shepherd family had their own feature that annoyed both Lauren and Derek beyond belief. "Lauren Shepherd, nice to put a name to the... no I haven't heard a thing about you actually. The long-running ABC medical drama will show Derek's sister, Kathleen, for the first time in the upcoming Amelia-dedicated episode, set to air later in Season 15.. Derek's mom Carolyn was introduced in Season 5 when she paid the hospital a visit and first met Meredith (Ellen Pompeo). Private Practice Steve Marsi at March 4, 2010 9:54 am.

0 comments The Shepherd family reunion also marks the first time the sisters reunited onscreen since Derek's death. Nancy and Kathleen needed to know everything about their relationships, Derek had his own personal pain with Amelia and both Lauren and Derek loved … Amy Acker to Play Derek Shepherd’s Fourth Sister on ‘Grey’s Anatomy’ We're about to meet another Shepherd sister on Grey's Anatomy! Grey's Anatomy will finally introduce the last of Derek Shepherd's sisters fans have not met yet..

Derek isn't all that talkative" "Yeah I know what you mean, I knew you existed but I didn't even know your name" "That makes me feel all warm and fuzzy Derek, thank you" … We met Derek's older sister, Nancy, on Season 3 of Grey's Anatomy.