Kirstie Alley’s 30 Biggest Scandals! ‘Insane' Drug Abuse, Steamy Affairs, Scientology Secrets & MORE Exposed

Kirstie Alley has never been shy about sharing her opinion. But despite her penchant for mouthing off about everything under the sun, there still are a few topics she'd probably rather not talk about. RadarOnline.com presents her biggest secrets and scandals!

A "furious" Alley reportedly felt "betrayed" when Leah Remini left the Church of Scientology. She later called her a "repulsive" "bigot" and said, "You are my enemy."

Alley has called John Travolta her "great love," and admitted that his wife, Kelly Preston, has confronted her about her ongoing flirtations with him.

Alley has called John Travolta her "great love," and admitted that his wife, Kelly Preston, has confronted her about her ongoing flirtations with him.

Alley has admitted to breaking up her first marriage when she made out with another man. "There were lots of little betrayals leading up to that," she recently told Howard Stern.

After her marriage imploded, she says, she was depressed and turned to cocaine for comfort. She's explained, "I took one snort of cocaine and I go, 'Oh my god, I'm gonna do this every day for the rest of my life!'"

After her marriage imploded, she says, she was depressed and turned to cocaine for comfort. She's explained, "I took one snort of cocaine and I go, 'Oh my god, I'm gonna do this every day for the rest of my life!'"

After her marriage imploded, she says, she was depressed and turned to cocaine for comfort. She's explained, "I took one snort of cocaine and I go, 'Oh my god, I'm gonna do this every day for the rest of my life!'"

Alley's mother was killed by a drunk driver and her father was seriously injured in the crash. She's said she had to leave the set of her first paying gig to rush to him in Kansas.

Alley's mother was killed by a drunk driver and her father was seriously injured in the crash. She's said she had to leave the set of her first paying gig to rush to him in Kansas.

Alley claims Scientology cured her drug abuse, saying, "Miraculously, I had one Scientology session and never did cocaine again."

Alley claims Scientology cured her drug abuse, saying, "Miraculously, I had one Scientology session and never did cocaine again."

Alley insists she never slept with Cheers co-star Ted Danson, but she claims she once snapped a photo of his "big d**k."

Alley insists she never slept with Cheers co-star Ted Danson, but she claims she once snapped a photo of his "big d**k."

After gaining nearly 100 pounds, Alley says she didn't have sex for four years.

Despite rumors that she had her stomach stapled to lose weight, her rep told the National ENQUIRER, "She can show that she doesn't have the scars this procedure leaves."

In 2006, Alley was reportedly set up on a blind date with stock trader Randy Ostin, who was already seeing actress Tawny Kitaen. An angry Kitaen told the ENQUIRER, "I want to know how much weight she has really lost these days. I mean, how big is her butt now anyways?" Alley didn't comment.

In 1990, Village Voice columnist Michael Musto wrote a blind item that suggested Alley and then-husband Parker Stevenson were gay. But a source told the ENQUIRER, "She hits on men all the time."

Alley briefly dated hip hop star Shancie Boyd in 2011, but reportedly dumped him when she found out he was still living with his mom!

Animal rights advocate Tippi Hedren slammed Alley earlier this year for keeping at least nine lemurs as pets at her California estate. Alley said they are well-fed and cared for, but Hedren insisted, "These creatures need to be in their natural habitat."

Despite rumors that she had her stomach stapled to lose weight, her rep told the National ENQUIRER, "She can show that she doesn't have the scars this procedure leaves."

Does Alley have any plastic surgery secrets? She insists she's never used fillers or Botox, but says she's "debated … for 30 years."

While filming Star Trek, she claims, a cinematographer told her to consider an eye lift but she declined.

When Alley was high on cocaine, a source told the ENQUIRER, she "was living like some whacked-out hippie in a tent. She wasn'working … her life had come down to snorting cocaine and sitting inside this dark tent."

Leah Remini's stepmom called Alley a "big fat bully" who tried to "control Leah" when she was a Scientologist. "Kirstie should have known better," Donna Remini-Fiore told the National ENQUIRER.

This July, Alley drew heat for encouraging Kanye West and other celebrities to beat up photographers. She tweeted, "I applaud anyone who takes a swing at em."

Alley allegedly wrote "reports" about Leah Remini to the Church of Scientology that helped spark her departure, according to Remini's sister, Nicole Remini.

Though a self-professed man-eater, Alley says she hasn't had a real boyfriend for 13 years.

In 2011, Project Runway star Tim Gunn slammed Alley for saying she was size 4, and insisted she was more like a size 8 or 10.

Who needs to kiss and tell when there are photos? Alley was caught locking lips with fellow Dancing with the Stars contestant Romeo in 2011.

When George Lopez made a nasty joke about Alley's weight on-air in 2011, she tweeted that he was "a drunk pig." He later apologized.