Credit: Tim Davis on Twitter Photo: Matt Bomer's Cooper Anderson and Darren Criss' Blaine Anderson

Details about what to expect from Blaine’s (Darren Criss) mysterious old brother, Cooper Anderson, have been carefully kept under wraps... until now.

Sure, we’ve seen a couple of pictures which showed us that Blaine’s older bro likes to wear black v-necks and has really great hair. And we knew he’s going to sing a “very sexy and fun and big” Duran Duran mashup number. But other than that? Nothing.

Now, Fox has released the official episode summary for Glee Season 3, Episode 15: "Big Brother" and the info about Cooper is pretty exciting. The summary reads, “Much to Blaine’s chagrin, his big-shot actor brother, Cooper (Guest Star Bomer), comes to visit in the all-new Spring Premiere “Big Brother” episode.”

Blaine’s older bro is a big-shot Hollywood actor? How cool is that! Then again, seeing how effortlessly and charismatically Blaine led the Warblers all last season, is it really much of a surprise that star power runs in the family.

Of course, we’re a little upset that the cute brothers can’t be on better terms. It seems pretty hard to make Blaine angry, after all. Is is possible that Cooper’s done something really selfish to upset his little bro so much?

We won’t know anything for sure until Glee’s return on April 10, but we have to say — realizing that we’re still need to wait another two weeks suddenly got a billion times harder!

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