On Tuesday, a rep for The CW confirmed that Heather Locklear (Amanda), Daphne Zuniga (Jo), Josie Bissett (Jane) and Thomas Calabro (Michael) from the original FOX primetime soap will return to the show’s iconic courtyard to shoot a scene that will air on an episode in early 2010.

“Heather’s creating a lot of drama with her diva antics. It’s making our lives miserable. She’s insecure and on edge. The responsibility is weighing heavily on her.”

The 48-year-old actress, who helped make the original Melrose Place a smash on FOX, allegedly had recently ousted actress Ashlee Simpson-Wentz booted from the cast and has been acting like a total prima donna behind the scenes — thundering at cast and crew during random tantrums and even suffering a meltdown after one of her outfits was missing a button.

“Heather was absolutely fuming over the button, and said, ‘You got to be fucking kidding me, right? What kind of operation is this?’” she bellowed before storming off to her trailer, says the production insider.

The Enquirer writes: “Heather — who completed a stint in rehab after a DUI arrest last year — exhibited more tyrannical behavior when she arrived late to shoot an outdoor scene: ‘On one of the coldest days in L.A., she made the cast and crew and tons of extras wait outside to film.’”

A rep for Heather Locklear denies that the actress terrorizing her co-workers wit diva hijinks.

“Ashlee was kicked off ‘Melrose Place’ because she was a total diva on set, late all the time, and deeply disliked by fellow cast members,” the loose-lipped informant blabbed. “It created a lot of discord among the cast. She could barely act,” the source said.

Producers, desperate to save the sinking series, wanted Heather Locklear to reprise her role as tough PR exec Amanda Woodward, but couldn’t afford her salary demands without cutting someone.

“They basically trimmed the fat and made it possible for Heather to join the show. Heather is a much bigger name than Ashlee….”

“CW catching up on MP.who writes this crap?i have had bad scripts to work with,but this?thank God my sister is amazing and got you some press,” Jessica Tweeted on Sunday night.

Late last month, the network announced that Ashlee and co-star Colin Egglesfield would be dropped from the Melrose cast in January following the end of the “Who Killed Sydney?” storyline.

While the move may have come as a surprise to fans, executive producer Todd Slavkin claims it was in the cards all along.

“Heather was jealous of Ashlee immediately,” says an insider. “She knew Ashlee was one of the bigger names on set, and she wanted her gone so she could make it her show. Heather is very politcial and calculating…”

On Oct. 22, The CW abruptly announced that Ashlee along with co-star Colin Egglesfield had been booted from the show. Producers are hoping Heather’s familiar face will be a show-saving draw for the critically-panned and ratings-challenged Melrose 2.0. Informants say that’s precisely why bosses had no problem ditching Ashlee — who will exit her role as Violet Foster — after 48-year-old Heather complained she’d been poking fun of her age to other members of the cast and crew.

“She was a thorn in Heather’s side from the beginning. Ashlee came off as insincere and a wannabe diva….Her lack of talent didn’t help her…She feels like a fool.”

Heather Locklear reprises her role as Amanda on The CW’s Melrose Place Nov. 17.

Nick will likely play an MD, if he reaches a deal with the network.

“He will move into the building,” Executive Producer Todd Slavkin told EW. “He doesn’t take life very seriously. Medicine can be fun as well as serious to him, and he ends up lightening up Lauren.”

Nick Zano — who has been romantically-linked to Kristin Cavallari and Haylie Duff — appeared opposite Jennie Garth and Amanda Bynes on The WB comedy What I Like About You from 2002-2006.

Their departure comes just a few weeks after original Melrose vixen Heather Locklear began filming scenes for upcoming episodes that will premiere next month. Word is the critically-panned, low-rated redux will begin transitioning to a “lighter, more fun” style, although executive producer Todd Slavkin maintains that the changes were on the table all along.

When was the original Melrose Place ever “light and fun?”

“Once that murder mystery was solved, [Ashlee’s character] would go on her way,” he said. “That was the original plan going into the development of the show.”

Simpson-Wentz and Egglesfield took the news “like professionals,” says Slavkin. “Because they knew ahead of time [that leaving was a possibility], it wasn’t a complete shock.”

Despite weeks of disappointing ratings, on Wednesday, The CW picked the series up for a full season run.

The Bitch is Back! Heather Locklear mixes it up with the new residents of television’s hottest complex when she revives her role as PR vixen Amanda Woodward on the “Cahuenga” episode of Melrose Place, airing on The CW Nov. 17.