David Tennant, Michael Sheen had a hell of a good time making Good Omens season 2

David Tennant, Michael Sheen had a hell of a good time making Good Omens season 2
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In Good Omens season 1, Aziraphale and Crowley saved the world. Now, they might just have to save each other.

David Tennant and Michael Sheen return for a second season of the hit comedy, premiering July 28 on Prime Video. Originally, the show was only intended as a six-episode miniseries, adapted from Terry Pratchett and Neil Gaiman's beloved 1990 novel. But before Pratchett's death in 2015, the two authors had brainstormed ideas for a potential follow-up — ideas that Gaiman later adapted into Good Omens season 2.

Speaking to EW before the start of the SAG-AFTRA strike, Tennant and Sheen opened up about reprising their roles as everyone's favorite grumpy demon and fussy angel. Originally, both actors assumed the series would be one and done. But they became fast friends on set, and in between shots, they would chat with Gaiman about ideas for a potential season 2. Little by little, Tennant says, the second season "crept into existence."

Good Omens
Good Omens

Amazon Studios 'Good Omens' season 2

"Neil would often tell stories of how him and Terry had dreamed of a sequel, and there were some ideas they kicked around that they never got to explore," Tennant, 52, tells EW. "But there was no sense initially that would actually bear fruit."

"They even had a name for the sequel that never got written," Sheen, 54, adds. "It always used to make me laugh so much because the name they had come up with was 668: The Neighbor of the Beast."

Now, that second season is becoming a reality, once again centering on Aziraphale (Sheen) and Crowley (Tennant) as they find themselves in the middle of a celestial crisis. (Last time, they teamed up to help prevent the apocalypse. This time, they find themselves in the middle of an angelic mystery.) Season 1 took a deep dive into the pair's unlikely, millennia-spanning relationship, stretching from the Garden of Eden to Shakespearean England. Tennant and Sheen say that season 2 will go even deeper.

"That was one of the most exciting things, being able to explore that relationship," Sheen says. "It's the most simple relationship — and also the most complicated. On the simple side, they're two beings who love each other. On the complicated side, they're about as opposite as possible. So, there are all these obstacles to their relationship, both without and within."

Good Omens
Good Omens

Amazon Studios 'Good Omens' season 2

Season 2 also sees the return of Jon Hamm's glowering archangel Gabriel — who appears suddenly at Aziraphale's bookshop, having entirely lost his memory. The Mad Men star gets to show off his comedic chops as the amnesiac Gabriel, puttering around the bookshop and smiling blankly. "He sort of became famous as this matinee idol, but I always think that Jon is naturally a clown," Tennant says of his costar. "He's a very funny, witty man, and he's got that comic sensibility."

"He's such an aficionado of not just American comedy, but British comedy as well," Sheen adds. "He knows the most obscure British comedy things. It's always ironic that the character that he became best known for and that brought him into the public eye was this very serious character, when everyone who knows him knows how funny he is."

Tennant and Sheen say perhaps the biggest surprise has been how fans have embraced their versions of Crowley and Aziraphale. Tennant notes that Pratchett and Gaiman's book has been "beloved for decades," and while filming the first season, he felt "terror that we would break it." But about six months after the show premiered, he attended a fan convention, where he started to notice a heavenly trend.

"I've been to Comic-Cons over the years, and I often meet people dressed up as a character I played on the BBC — and I still do," Tennant explains. "But increasingly, I was meeting people dressed up as Crowley and Aziraphale. And one of the loveliest things is that you always meet pairs. You don't really meet someone dressed as an Aziraphale, or somebody dressed as a Crowley. You meet an Aziraphale and Crowley. They always seem to come in twos."

"You started to see people reacting to it online, and people starting to respond with their own artwork and their own fan fiction, and you saw it all starting to blossom and grow," Sheen marvels. "I'd never experienced anything like that before. David, of course, had gone through the whole Doctor Who experience, but it really blew me away."

Season 2 relocated filming to Bathgate, Scotland — about a mile from the hospital Tennant was born in, he notes with a laugh. The new cast includes Quelin Sepulveda as a newbie angel named Muriel, Maggie Service as a local record shop owner, and Nina Sosanya as the proprietor of a local coffee shop. But Aziraphale and Crowley are the season's emotional heart, and much of the series will focus on their friendship — or might it be something more?

Returning for a second season also meant that Tennant and Sheen had to slip back into their otherworldly guises. Sheen was thrilled to be back in Aziraphale's bookshop, but how did Tennant feel about donning Crowley's contact lenses and wigs again?

"It's rarely a wig!" Tennant says with mock indignancy. "I mean, that's my hair a lot of the time! Obviously when it gets a bit longer, there are bits added in. But there was a lot of bleaching and dyeing going on before we started shooting. That was probably when I knew there was no going back, when I got the flame-red hair put back on my skull."

Good Omens season 2 will premiere July 28 on Prime Video.

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