Maya Rudolph as Harris and Dana Carvey as Biden open the 50th season of 'Saturday Night Live'

NEW YORK (AP) — “Saturday Night Live” began its 50th season with a parade of former co-stars, including Maya Rudolph as Vice President Kamala Harris, Andy Samberg as her husband Doug Emhoff and Dana Carvey as President Joe Biden.

“We've got to stay focused,” Rudolph-as-Harris said at a mock rally in the show's cold open. “If we win, together, we can end the drama-la and the trauma-la and go relax in our pajama-las.”

After bringing out running mate Tim Walz, played by comedian and actor Jim Gaffigan, she invited Samberg-as Emhoff to the stage and then, almost as an afterthought, Biden, played by the oldest of the group, the 69-year-old Carvey.

“A lot of people forget I’m president, including me," said Carvey, best known on the show for playing President George W. Bush in the late 1980s.

Rudolph and Carvey jointly delivered the “Live from New York, it's Saturday night” that launched season 50 of the sketch comedy institution.

Rudolph's return to play Harris — she won an Emmy for playing her previously — had been reported, but it was not certain when she would appear. The guest spots from Carvey, Samberg and Gaffigan were all surprises.

“Designing Women” star Jean Smart, fresh off winning her sixth Emmy for her lead role in “Hacks,” was host, a role the 73-year-old has somehow never played in a four-decade career.

“I remember watching the first episode of ‘SNL’ and thinking, ’someday I’m going to host that show,” Smart said in her opening monologue. “And this is the first Saturday that fit my schedule.”

That first episode came on Oct. 11, 1975, with Lorne Michaels at the helm, just as he is now.

George Carlin hosted and the nation got its first dose of the Not Ready for Prime Time Players: Chevy Chase, John Belushi, Gilda Radner, Dan Akroyd, Jane Curtin, Laraine Newman and Garrett Morris.

There were two musical guests — Billy Preston and Janis Ian — playing two songs apiece, the norm in the early days.

The country singer and rapper Jelly Roll had the music role to himself Saturday, singing his song “Liar,” and like Smart he was a first-timer.

That debut show is documented and reenacted in the newly released Jason Reitman film “Saturday Night,” part of a wave of reflection and celebration the show is getting on the cusp of its 50th anniversary.

Upcoming episodes are scheduled to feature host Nate Bargatze with musical guest Coldplay, Ariana Grande with Stevie Nicks, Michael Keaton with Billie Eilish and John Mulaney with Chappell Roan.

Those shows will lead up to a three-hour primetime special on Feb. 16 that will serve as the official 50th season celebration. It's sure to feature a wide range of the many stars the show has spawned, including Bill Murray, Eddie Murphy, Billy Crystal, Julia Louis-Dreyfus, Robert Downey Jr., Mike Myers, Adam Sandler, Chris Rock, Tina Fey, Amy Poehler and Will Ferrell.