"Grey's Anatomy" Season 10, Episode 11, "Man on the Moon" airs Dec. 5 on ABC. The wedding date is approaching for the shippers' Mapril -- April Kepner (Sarah Drew) and Matthew Taylor (Justin Bruening). But is it really over for Japril? Meanwhile, Calzona are trying to repair their love and marriage. And Jolex are about to face another challenge in their relationship. On top of that, some Thanksgiving drama are about to unfold for the show's core characters.

Spoiler alert: This feature contains spoilers from the episodes preceding "Grey's Anatomy" Season 10, Episode 11, "Man on the Moon."

For the first time, Stephanie (Jerrika Hinton) asks Jackson (Jesse Williams) if things are really over for Japril. Avery tries to reassure her that he's over Kepner, but there's more to read from his decision against attending the Mapril wedding.

Calzona, Crowen, Jolex: Some relationships are meant to last - but which one? [SPOILERS]

Couples Japril and Mapril are going to take the center stage on Grey's Anatomy Season 10 as the mid-season finale develops. But the other couples - Calzona, Crowen and Jolex - have a lot going on in their little worlds, too.

Callie (Sara Ramirez) and Arizona (Jessica Capshaw) are trying to save their marriage. Love forgives, so they say. This is good news for the fans. But what does it take for Arizona to graduate from sleeping in the couch?

If Sandra Oh had not announced she's leaving the series, fans could still hope for a Crowen reconciliation. But she's leaving the show. And Cristina Yang is leaving Grey Sloan Memorial. It also seems Owen Hunt (Kevin McKidd) is really falling for Emma (Marguerite Moreau). So, RIP, Crowen?

Jolex, the happiest shippers' couple, are still the happiest pair on Grey's Anatomy Season 10. But Dexter's dad, err, Karev's dad, is coming back.

James Remar played Dexter's dad on the defunct Showtime series "Dexter." Now he's dad to another series "bad boy," Alex Karev (Justin Chambers). The last time Karev's dad was on Grey's Anatomy, Jo (Camilla Luddington) made a bad call and put her romance with Karev at risk. Spoilers reveal Jo will be making another call in favour of Karev's dad. Will she regret it?

Grey's Anatomy Season 10 Wedding Update: Actresses Playing Kepner Sisters; Actor Playing Dad Kepner; Japril or Mapril in the End?

Scroll down to watch a YouTube video featuring a few still photos of April Kepner with her three sisters. Two very important men in her life are also in the photos. Viewers could smell awkward when Jackson Avery appears in the clip. It seems the scene is a getting-to-know the sisters for Matthew. Is this wedding really be Kepner-Taylor, or Kepner-Avery?

Playing the April Kepner's three sisters are Emily Happe ("Days of Our Lives"), Elizabeth Bond ("Drop Dead Diva"), and Grace Bannon ("The Middle"). They are Libby, Kimmie, and Alice, respectively.

Playing Kepner's dad and walking her down the aisle is Rev. Charles Drew, real life dad of Sarah Drew.

WATCH: April Kepner's Sisters Meet Paramedic Matthew and Jackson Avery [SPOILERS]

Grey's Anatomy Season 10, Episodes 11 and 12 are the last Shondaland servings of Grey Sloan Memorial for 2013. Grey's creator Shonda Rhimes announced two words on Twitter about Grey's mid-season finale: "BONKERS endings!!"

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Grey's Anatomy Season 10 Review: Jolex, Calzona, Crowen -- All the Couple Changes So Far [SPOILERS]
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