Grey's Anatomy Season 12 Premiere Sneak Peeks: "Sledgehammer"

Grey's Anatomy Season 12 Premiere Sneak Peeks: "Sledgehammer"

On the Season 12 Premiere of Grey's Anatomy, the doctors of Grey Sloan Memorial must spring into action to save the lives of two young girls whose powerful story will force some of the doctors to revisit the effects of bullying on their own pasts. Meredith is struggling to adjust to changes at home with her new roommates, Amelia and Maggie.

Season 12 Premiere Sneak Peek: Meredith's New Roommates

Dr. Bailey, who is vying for the Chief of Surgery position, meets her professional competition, Dr. Tracy McConnell (guest star Joey Lauren Adams). And Jackson must prepare himself for April's return to Seattle. Watch the preview and check out photos straight from the episode!

Season 12 Premiere Sneak Peek: Dr. Bailey Meets Her Professional Competition

Guest star Joey Lauren Adams plays Dr. Tracy McConnell, Catherine Avery's candidate for the Chief of Surgery position, on the Grey's Anatomy Season 12 premiere, "Sledgehammer."

Dr. Callie Torres, Dr. Tracy McConnell (guest star Joey Lauren Adams), and a new intern (played by Giacomo Gianniotti) from the Grey's Anatomy Season 12 Premiere, "Sledgehammer."

Get ready for the premiere with the Season 12 Countdown Calendar, and don't miss the Season 12 premiere, "Sledgehammer," THURSDAY SEPTEMBER 24 8|7c on ABC.

GREY'S ANATOMY CHARACTER 101s

Meredith Grey

Alex Karev

Arizona Robbins

Miranda Bailey

Callie Torres

Owen Hunt

Jackson Avery

Jo Wilson

Stephanie Edwards

Richard Webber

April Kepner

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