Melissa Gilbert (left) and Alison Arngrim in 2022.Photo:Albert L. Ortega/GettyLife didn’t imitate art forLittle House on the PrairiestarsMelissa Gilbertand Alison Arngrim.During an exclusive interview with PEOPLE at the classic family drama’s 50th Anniversary Cast Reunion and Festival in Simi Valley, California, on Saturday, Arngrim — who played schoolyard bully Nellie Oleson on all nine seasons of the show — reflected on her relationship with Gilbert, 59, who starred as Laura Ingalls Wilder.“Here’s Melissa Gilbert and I playing mortal enemies, beating each other senseless all week,” says Arngrim, 62. “And then on the weekends, we’d go to each other’s house for a slumber party and we were hanging out.“Arngrim says she and Gilbert were “like sisters” when the cameras stopped rolling, and were even choreographing their fight scenes together from the first year they began working together in 1973.“It’s so completely bonkers,” Arngrim jokes.The cast of ‘Little House on the Prairie’.Frank Carroll/NBCU Photo Bank via GettyShe says that fans often ask her to sign a particular photo of her and Gilbert posing together behind the scenes while filming a Christmas episode in which their characters fight — and express shock that the young ladies are smiling in the photo.“People say, ‘It’s little Nellie and Laura, but you’re smiling. The two of you don’t smile at each other in that episode,’ " she recalls. “I’m like, ‘This was us for real.’ “Although Arngrim and Gilbert were able to separate reality from fiction, Nellie Oleson became such an iconic bully that viewers weren’t able to do the same.“People hated me. They hated me, hated me,” Arngrim says, remembering that someone once threw a cup of orange soda in her face while at a Christmas parade.Little House on the Prairie’s Melissa Gilbert Says Michael Landon ‘Sacrificed’ His Pay to Buy Cast Presents (Exclusive)Melissa Gilbert as Laura Elizabeth Ingalls Wilder and Alison Arngrim as Nellie Oleson.NBCU Photo Bank/GettyNever miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.“I was a moving target and they hit me. So I’m kind of impressed,” the actress and comedian tells PEOPLE. “But what struck me about it, and all the times that people attack me, I was like, ‘What am I doing that they are so convinced this is real, that they’re just losing it?’ “Arngrim says she’s learned to embrace being known as a bully, and shared her experiences on the show in a live one-woman show she did calledConfessions of a Prairie Bitch.

Melissa Gilbert (left) and Alison Arngrim in 2022.Photo:Albert L. Ortega/Getty

Alison Arngrim and Melissa Gilbert attend The Hollywood Show held at Los Angeles

Albert L. Ortega/Getty

Life didn’t imitate art forLittle House on the PrairiestarsMelissa Gilbertand Alison Arngrim.During an exclusive interview with PEOPLE at the classic family drama’s 50th Anniversary Cast Reunion and Festival in Simi Valley, California, on Saturday, Arngrim — who played schoolyard bully Nellie Oleson on all nine seasons of the show — reflected on her relationship with Gilbert, 59, who starred as Laura Ingalls Wilder.“Here’s Melissa Gilbert and I playing mortal enemies, beating each other senseless all week,” says Arngrim, 62. “And then on the weekends, we’d go to each other’s house for a slumber party and we were hanging out.“Arngrim says she and Gilbert were “like sisters” when the cameras stopped rolling, and were even choreographing their fight scenes together from the first year they began working together in 1973.“It’s so completely bonkers,” Arngrim jokes.The cast of ‘Little House on the Prairie’.Frank Carroll/NBCU Photo Bank via GettyShe says that fans often ask her to sign a particular photo of her and Gilbert posing together behind the scenes while filming a Christmas episode in which their characters fight — and express shock that the young ladies are smiling in the photo.“People say, ‘It’s little Nellie and Laura, but you’re smiling. The two of you don’t smile at each other in that episode,’ " she recalls. “I’m like, ‘This was us for real.’ “Although Arngrim and Gilbert were able to separate reality from fiction, Nellie Oleson became such an iconic bully that viewers weren’t able to do the same.“People hated me. They hated me, hated me,” Arngrim says, remembering that someone once threw a cup of orange soda in her face while at a Christmas parade.Little House on the Prairie’s Melissa Gilbert Says Michael Landon ‘Sacrificed’ His Pay to Buy Cast Presents (Exclusive)Melissa Gilbert as Laura Elizabeth Ingalls Wilder and Alison Arngrim as Nellie Oleson.NBCU Photo Bank/GettyNever miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.“I was a moving target and they hit me. So I’m kind of impressed,” the actress and comedian tells PEOPLE. “But what struck me about it, and all the times that people attack me, I was like, ‘What am I doing that they are so convinced this is real, that they’re just losing it?’ “Arngrim says she’s learned to embrace being known as a bully, and shared her experiences on the show in a live one-woman show she did calledConfessions of a Prairie Bitch.

Life didn’t imitate art forLittle House on the PrairiestarsMelissa Gilbertand Alison Arngrim.

During an exclusive interview with PEOPLE at the classic family drama’s 50th Anniversary Cast Reunion and Festival in Simi Valley, California, on Saturday, Arngrim — who played schoolyard bully Nellie Oleson on all nine seasons of the show — reflected on her relationship with Gilbert, 59, who starred as Laura Ingalls Wilder.

“Here’s Melissa Gilbert and I playing mortal enemies, beating each other senseless all week,” says Arngrim, 62. “And then on the weekends, we’d go to each other’s house for a slumber party and we were hanging out.”

Arngrim says she and Gilbert were “like sisters” when the cameras stopped rolling, and were even choreographing their fight scenes together from the first year they began working together in 1973.

“It’s so completely bonkers,” Arngrim jokes.

The cast of ‘Little House on the Prairie’.Frank Carroll/NBCU Photo Bank via Getty

Little House: A New Beginning – Little House: Look Back to Yesterday, 1983

Frank Carroll/NBCU Photo Bank via Getty

She says that fans often ask her to sign a particular photo of her and Gilbert posing together behind the scenes while filming a Christmas episode in which their characters fight — and express shock that the young ladies are smiling in the photo.

“People say, ‘It’s little Nellie and Laura, but you’re smiling. The two of you don’t smile at each other in that episode,’ " she recalls. “I’m like, ‘This was us for real.’ "

Although Arngrim and Gilbert were able to separate reality from fiction, Nellie Oleson became such an iconic bully that viewers weren’t able to do the same.

“People hated me. They hated me, hated me,” Arngrim says, remembering that someone once threw a cup of orange soda in her face while at a Christmas parade.

Little House on the Prairie’s Melissa Gilbert Says Michael Landon ‘Sacrificed’ His Pay to Buy Cast Presents (Exclusive)

Melissa Gilbert as Laura Elizabeth Ingalls Wilder and Alison Arngrim as Nellie Oleson.NBCU Photo Bank/Getty

LITTLE HOUSE ON THE PRAIRIE – “The Campout” Episode 9 – Aired 11/19/1975 – Pictured: (l-r) Melissa Gilbert as Laura Elizabeth Ingalls Wilder, Alison Arngrim as Nellie Oleson -

NBCU Photo Bank/Getty

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 celebrity news to compelling human interest stories.

“I was a moving target and they hit me. So I’m kind of impressed,” the actress and comedian tells PEOPLE. “But what struck me about it, and all the times that people attack me, I was like, ‘What am I doing that they are so convinced this is real, that they’re just losing it?’ "

Arngrim says she’s learned to embrace being known as a bully, and shared her experiences on the show in a live one-woman show she did calledConfessions of a Prairie Bitch.

source: people.com