What The Hell Is Happening In ‘Grey’s Anatomy’ Season 12 Episode 14? [SPOILERS]

"Grey's Anatomy" Season 12 Episode 14 will definitely be a tension-filled episode as two of its cast will go head-to-head against each other. Aside from that, a Hollywood legend is also set to guest star in the upcoming episode of the series.

Before the conflict in "Grey's Anatomy" Season 12 Episode 14, last week's episode showed the Grey Sloan Memorial doctors as they got into a confrontation when they performed a risky surgery in a veteran at a military hospital. Fortunately, the team never backed down when Major Eric Thorpe (Scott Elrod) questioned them about the precarious operation.

So, as things get more interesting in "Grey's Anatomy' Season 12 Episode 14, here are some things you shouldn't miss in the upcoming episode titled, "Odd Man Out."

"Grey's Anatomy" Season 12 Episode 14 Guest Stars

One of Hollywood's legendary actresses and "West Side Story" Alum Rita Moreno is reportedly making a guest appearance in "Grey's Anatomy" Season 12 Episode 14. According to The Hollywood Reporter, the 84-year-old Puerto Rican actress will play the role of Gayle.

In addition, "Happy Endings" alum Casey Wilson will also appear in the upcoming episode as Arizona's pregnant patient who would be expecting quadruplets.

Grey Sloan Memorial Sloan Residents' Swap

In "Grey's Anatomy" Season 12 Episode 14, Dr. Weber (James Pickens Jr.) will rock the Grey Sloan Memorial Hospital as he shuffles the residents around. Unfortunately, Jo (Camilla Luddington) goes to Meredith's (Ellen Pompeo) team, International Business Times noted.

Jo vs Meredith

Following the residents' swap, Meredith and Jo will be involved in an intense confrontation. And Meredith will ensure to let Jo know that she's not the person she should messed up with. But the brave resident will confront her for her b-chy attitude.

"No, I'm not Blake. I'm Wilson. Jo Wilson," Jo told Meredith in "Grey's Anatomy" Season 12 Episode 14 trailer. "I'm a surgeon. I'm a human being I'm not some stupid lump that you can just kick around or talk down to or talk down about or dismiss and discount. I get it ... you don't like me. But I'm here. I'm in Alex's (Justin Chambers) life and you have to start respecting that."

"Grey's Anatomy" Season 12 Episode 14 Synopsis

"Richard swaps pairings among the residents and attendings, baffling everyone," the episode's synopsis read, as per TV Guide. "Meanwhile, Arizona makes a bold decision as she treats a woman who's carrying quadruplets; and April faces a tough choice."

Meanwhile, "Grey's Anatomy" Season 12 episode 14 premieres on Mar. 17, Thursday at 8 p.m. on ABC.