🧠 Grey's 🫀Anatomy 🫁 ~ 
Celebrates 400 Episodes 

Premièred in 2005

The 400th episode is the Season 18 finale
 a two-hour event on Thursday, May 26

 (The medical drama was renewed for Season 19 in January.) Before that, Grey’s returns on May 5 with “Should I Stay or Should I Go,” featuring Kate Walsh’s return as Dr. Addison Montgomery. According to ABC, that episode also sees Dr. Miranda Bailey (Chandra Wilson) facing an unhappy Dr. Catherine Fox (Debbie Allen) who is facing audits for several of her Foundation hospitals, tensions rising between
  Dr. Meredith Grey (Ellen Pompeo) — who may be leaving Seattle for a job at the Mayo Clinic — and Dr. Richard Webber (James Pickens Jr.), and Dr. Owen Hunt (Kevin McKidd) returning to work