It’s the end of an era forAllison Janney— one which the actress said it’s going to be “very hard” to leave.On Wednesday’s episode ofThe Late Late Show, Janney, 61, told hostJames Cordenthat she was feeling “sad” over thecancellation of her showMom, on which she has played Bonnie Plunkett for the last eight seasons. But the Emmy-winning actress said the news wasn’t exactly expected.“I wish that we’d had at least another year for the writers to have that much time to ramp up to the ending. We sort offound out sooner than we thought we would,” she said. “We thought, ‘Surely, they’re gonna want moreMom.’ And they decided not.“While the Oscar winner recognizes there were likely “many reasons” behind the decision to axe the CBS sitcom, she told Corden, 42, that she thinks “most of them” are “probably money”-related.“But I know thatChuck Lorreis writing the final episode and we’re, right now, filming the third-to-last episode,” Janney explained. “And I’m having a lot of moments where I’m just standing on set, taking it in and looking at all the faces I’ve looked at for eight years.“Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.Allison Janney and Anna Faris onMom.Monty Brinton/CBS via GettyAllison Janney.The Late Late Show with James CordenCBS announced the news that season 8 would beMom’s final season last month. The series follows Janney as Bonnie andAnna Faris(whoexited after season 7) as Christy, a mother and daughter who are recovering addicts.Janney was nominated for best supporting actress at theEmmy Awardsfor her role as Bonnie from 2014 to 2018, winning twice. In January,Momwas also nominated for threeCritics' Choice Awards, including best comedy series.“It’s gonna be very hard to just have it, all of a sudden, [be] gone,” Janney told Corden. “And no matter how much I prepare myself for it, I knowI’m gonna be just buckets of tears. Because it’s been so incredible — the amazing letters I get from people who are in the program, or people who got sober with us.“She added, “It’s been a great show to be part of. And it’s so rare when you do something like that, and it affects people in a positive way out in the world. It makes me sad, but onward.“Anna Faris, Allison Janney and Jaime Pressley onMom.Darren Michaels/Warner Bros.RELATED VIDEO: Allison Janney on Her Friendship with Anna Faris: “We Are a Family"One day after CBS announced their decision, Janney wrote a heartfelt tribute to the series, thanking her colleagues and also sharing a link to apetition to save the show.“Getting to be part ofMOMthese past 8 years … showing the laughter, love and hope that can come with recovery, has beenone of the great honors of my life,” the actress said at the time.She went on to thank a long list of people involved in the series, including creators Lorre, 68, Eddie Gorodetsky, and Gemma Baker “for giving us these wonderfully flawed and lovable characters to bring to life.““And last but not leastall of our extraordinary fans!!!” Janney concluded her post, after extending her gratitude to her costars and the crew. “Thank you for all of your support over the years🙏🏼.”
It’s the end of an era forAllison Janney— one which the actress said it’s going to be “very hard” to leave.
On Wednesday’s episode ofThe Late Late Show, Janney, 61, told hostJames Cordenthat she was feeling “sad” over thecancellation of her showMom, on which she has played Bonnie Plunkett for the last eight seasons. But the Emmy-winning actress said the news wasn’t exactly expected.
“I wish that we’d had at least another year for the writers to have that much time to ramp up to the ending. We sort offound out sooner than we thought we would,” she said. “We thought, ‘Surely, they’re gonna want moreMom.’ And they decided not.”
While the Oscar winner recognizes there were likely “many reasons” behind the decision to axe the CBS sitcom, she told Corden, 42, that she thinks “most of them” are “probably money”-related.
“But I know thatChuck Lorreis writing the final episode and we’re, right now, filming the third-to-last episode,” Janney explained. “And I’m having a lot of moments where I’m just standing on set, taking it in and looking at all the faces I’ve looked at for eight years.”
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
Allison Janney and Anna Faris onMom.Monty Brinton/CBS via Getty

Allison Janney.The Late Late Show with James Corden

CBS announced the news that season 8 would beMom’s final season last month. The series follows Janney as Bonnie andAnna Faris(whoexited after season 7) as Christy, a mother and daughter who are recovering addicts.
Janney was nominated for best supporting actress at theEmmy Awardsfor her role as Bonnie from 2014 to 2018, winning twice. In January,Momwas also nominated for threeCritics' Choice Awards, including best comedy series.
“It’s gonna be very hard to just have it, all of a sudden, [be] gone,” Janney told Corden. “And no matter how much I prepare myself for it, I knowI’m gonna be just buckets of tears. Because it’s been so incredible — the amazing letters I get from people who are in the program, or people who got sober with us.”
She added, “It’s been a great show to be part of. And it’s so rare when you do something like that, and it affects people in a positive way out in the world. It makes me sad, but onward.”
Anna Faris, Allison Janney and Jaime Pressley onMom.Darren Michaels/Warner Bros.

RELATED VIDEO: Allison Janney on Her Friendship with Anna Faris: “We Are a Family”
One day after CBS announced their decision, Janney wrote a heartfelt tribute to the series, thanking her colleagues and also sharing a link to apetition to save the show.
“Getting to be part ofMOMthese past 8 years … showing the laughter, love and hope that can come with recovery, has beenone of the great honors of my life,” the actress said at the time.
She went on to thank a long list of people involved in the series, including creators Lorre, 68, Eddie Gorodetsky, and Gemma Baker “for giving us these wonderfully flawed and lovable characters to bring to life.”
“And last but not leastall of our extraordinary fans!!!” Janney concluded her post, after extending her gratitude to her costars and the crew. “Thank you for all of your support over the years🙏🏼.”
source: people.com