When Criminal Minds was revived, Matthew Gray Gubler did not return because he wanted to explore other projects.

I'm an Associate Editor on BuzzFeed's Pop Culture team who spends my days fangirling over all my favorite TV shows and movies.

Bryan added, "He's actually going to Harvard. He's really, really smart, and he's getting his master's at Harvard right now. He said, 'Oh God, no, I haven't acted since I was nine or something. So I'm not into it.'"

He added, "Ultimately, I just decided it was left in a really good place for me, and I still want to leave it there. I wish them well, and I'm going to watch it the first night it comes out. I hope it fucking kicks ass, but I'm not going to be in it." 

Teen Wolf costars including Tyler Posey, Holland Roden, Crystal Reed, Colton Haynes, and Tyler Hoechlin all returned for the movie. 

Miranda also said that "it's really good money" to try to convince her, but Jennette felt some things were more important than money: "And my mental health and happiness fall under that category,'" Jennette recalled telling Miranda. "There's a moment of silence. It's one of those rare moments where I feel like I didn't say too much or too little. I feel like I represented myself accurately, and there's nothing I would change about the way I said it. I feel proud. We wrap up our conversation, promising to keep in touch and hang up." 

The series lasted three seasons, with Miranda, Jerry Trainor, and Nathan Kress returning to their original iCarly roles. 

"Either way, it's a disappointment, and either way, it leaves room for a beautiful spinoff in which Nate has his own film," he continued.

Years later, in an interview with Andy Cohen, Full House costar John Stamos explained that he was heartbroken when he first heard the news but totally understood. "We were disappointed, but we understood," he explained. "I remember Lori [Loughlin] saying to me, 'It's like, they won two or three CFDA [Council of Fashion Designers of America] Awards. That's like winning two or three Oscars. If you won three Oscars, would you come back and do this?' I was like, 'Yeah, maybe not.'"

Since their time in Full House, Mary-Kate and Ashley have received massive success with their high-end clothing line, the Row. 

A.J. Cook, who plays JJ on the series, spoke to BuzzFeed about continuing the series without Matthew. "Matthew is one of the most charismatic, larger-than-life, yet very real people I've ever met. It was actually really, really difficult for me when I found out he wasn't gonna be able to come back," she said. "I considered not [returning]. I was like, 'I don't know how to do this without him. Like, how do we do this?' [Our characters are] best friends. I kind of struggled with that at first. But when we started seeing the scripts, it's just such a strong storyline that it made me feel a lot better when I saw where it was all going. But yeah, he's so great, and definitely miss him. Hopefully we will see him again soon. We're definitely setting some things up. ... We all want him there. Hopefully that will all come together, because he's so much fun to be around. He's just that guy that you want to be around. Good energy."

Lindsay Lohan, Lacey Chabert, Amanda Seyfried, Daniel Franzese, and Rajiv Surendra all returned to their roles. 

Heroes Reborn ended up lasting only one season. 

Anton Narinskiy was recast in the role. 

He explained that he had so many other projects lined up that he wanted to do but wouldn't be able to if he signed on to the reboot. "And I just thought, I don’t want to be committed to a show and not be able to do stuff like this," he said. "And I also thought, They don't actually need me. Frasier has moved on to a new world. They have new characters. And I think I'm right. It's doing great. And the new people they have are great."