It's been an emotional week for the Supernatural family.

Stars Jensen Ackles, Jared Padalecki, and Misha Collins revealed on March 22 that the cult favorite series would come to an end after Season 15, signaling the end of an era. Production on Season 14 also wrapped this week, and the gang has been feeling pretty sentimental about it all, sharing sincere tributes all over social media. Padalecki's adorable wrap photo certainly takes some sting out of the heartbreaking news, as does Ackles' promise for a "BIG!!! REAL BIG!!!" final season.

In an open letter to fans on Friday, Collins opened up about his time with the long-running series and how being a part of Supernatural has changed his life for the better.

"What was supposed to be a small part lasting a couple of episodes on a genre TV show turned into over a decade of my career. I had no idea that when I stepped onto that set for what I thought was a simple acting gig, I was actually being welcomed into a family — not just a cast-and-crew family (though certainly that — I've found some of my closest friends in Jared, Jensen, & so many others in our cast and crew), but in all of you... our SPNFamily," he wrote.

Collins went on to assure fans that while the show might be ending, the bond between the show's stars and fans — who make up the "SPNFamily" — will always remain. "We're at the threshold of an ending — but remember, all 'endings' are really just a beginning in disguise. We may have been brought together by this show, but we're all family now — and that's not going anywhere. We've already impacted the world for the better... and we're just getting started," he added.

Read his letter in its entirety below.

In 2008, my life changed forever.

What was supposed to be a small part lasting a couple of episodes on a genre TV show turned into over a decade of my career. I had no idea that when I stepped onto that set for what I thought was a simple acting gig, I was actually being welcomed into a family--not just a cast-and-crew family (though certainly that--I've found some of my closest friends in Jared, Jensen, & so many others in our cast and crew), but in all of you... our SPNFamily.

In the last 11 years, we've been through so many profound moments together. Our crew and cast have been through a lot of struggles, several people passed away, other people got divorced or faced serious health problems... but we've also watched one another get married, have children, and find great personal success. There's been a lot to mourn and a lot to celebrate. And with you, the greater Supernatural Family, we've had similar losses and triumphs. We've seen so many good people succumb to illness (mental and physical), we've seen some of you find new jobs, new families, and new genders. In short, it's been a lifetime.

We have also done some really cool things together. Together, we've built an orphanage and a school, rescued refugees, fed hungry children, saved endangered species, and helped people experiencing homelessness or struggling with mental health issues. (There's no doubt in my mind that this is the kindest fandom in history.) We've played games, created art, and fought for political change. I've watched so many of you grow, and you've watched over our kids as they were born and grew, too... And they've been lucky enough to find themselves in a world filled with the warmth of your embrace, their millions of half-cousins-once-removed.

It's the first days of my last-ever Supernatural hiatus. When we go back after the break, we'll do everything in our power to give you an incredible season you deserve, one more time.

We're at the threshold of an ending--but remember, all "endings" are really just a beginning in disguise. We may have been brought together by this show, but we're all family now--and that's not going anywhere. We've already impacted the world for the better... and we're just getting started.

From the bottom of my heart, thank you all for adopting me into the #SPNFamily. I'll never stop being grateful, and can't wait to see what's coming next for us... together.

See you all soon.

Your friend,

Misha

Catch the remaining episodes of Supernatural's 14th season airing Thursdays at 8/7c on The CW.

(Disclosure: TV Guide is owned by CBS Interactive, a division of CBS Corporation.)

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