Like with many reality TV shows, the 90 Day Fiancé franchise cast members are selected because they have the potential for maximum drama, but sometimes they’re completely unstable. These stars from the franchise stand out to fans as cast members who are particularly mercurial and unpredictable. Their difficult natures haven’t earned them fan favorite status, and viewers are often alarmed by their behavior.

There’s a lot that can make a 90 Day Fiancé cast member seem unstable. Often it’s an inability to regulate emotions or a propensity for violence that viewers see as red flags. Fans don’t hesitate to call out the stars who seem unhinged and criticize them harshly. That kind of personality may make for compelling TV content, but that doesn’t mean it will lead to success in life.

Related: 90 Day Fiancé: Cast Members Fans Say Have The Purest Hearts

For many of these unstable cast members, their difficult natures impacted their relationships in a very negative way. Fans watched as the stars’ marriages crumbled due to their extreme mood swings, frightening behavior, and a tendency to make mountains out of mole hills.

Natalie Mordovtseva

Natalie Mordovtseva 90 Day The Single Life

Natalie has always exhibited odd behavior, but on 90 Day: The Single Life season 2, she cranked the dial up to 11. Throughout the season, she would have bizarre outbursts and crying sessions punctuated with narcissistic rants about why she’s so amazing. Fans felt she came off as unhinged, and watching Natalie was like watching an alien attempting to mimic human behavior. Though viewers don’t see Natalie as dangerous, she’s definitely kooky and ever-changing.

Syngin Colchester

Syngin Colchester 90 Day The Single Life

While Syngin used to come across as a jolly free spirit, fans’ opinion of him has changed in recent months. Startling allegations of sexual assault, abuse, and addiction have come to light, and now viewers are starting to see the cracks in his personality, and they don’t like what they see. At The Single Life Tell All in particular, Syngin showed signs of being quick to anger and not willing to take responsibility for his mistakes. Now fans see Syngin as scary and unstable, and many think he should be fired by TLC.

Jasmine Pineda

Jasmine Pineda 90 Day Fiance Before the 90 Days Season 5

Early on in the season, 90 Day Fiancé: Before the 90 Days star Jasmine’s extreme jealousy shocked viewers. She made her boyfriend Gino Palazzolo check in with her every time he left the house and Jasmine would pick fights over things like Gino being too cordial with a female restaurant worker. Her over-the-top emotions seem to stem from deep insecurities and it makes her get angry easily to the point where she lashes out at others. After Gino sent nude photos of her to an ex, Jasmine flew into a rage, and while she had every right to be furious, it was a little frightening to watch.

Related: 90 Day Fiancé: Stars Who Were Warned About Their Partners & Didn’t Listen

Steven Frend

90 Day Fiance's Steven Frend and Olga Koshimbetova with their baby

There were many insecurities that came to the surface after Steven’s son was born, and he raised concern in viewers. Steven was once the center of his girlfriend Olga Koshimbetova’s attention, but after the birth, Olga had to devote all her energy to the baby. Though Olga was right to do so, Steven seemed personally offended and jealous of his own son. Fans were extremely worried about Olga’s well-being, because everything about Steven’s behavior was toxic.

Anfisa Arkhipchenko

Anfisa Arkhipchenko in a chair talking to the camera in 90 Day Fiancé

Anfisa’s behavior on the show was extremely unstable, and on many occasions she would go from 0 to 60 and become enraged out of nowhere. There were instances when Anfisa was physically abusive towards her ex-husband Jorge Nava, and her stunning mood swings were impossible to predict. Anfisa has always been completely unapologetic about her erratic behavior and she strikes fans as imbalanced. Whether screeching for her red bag with her makeup or actively assaulting Jorge, viewers felt she was not fit to be a part of the franchise.

Geoffrey Paschel

Geoffrey Paschel from 90 Day Fiance

Geoffrey is easily one of the most dangerous and toxic cast members in the franchise. Assault and kidnapping charges brought against Geoffrey by an ex led to him being banned from the Tell-All, and later he was convicted and sentenced to 18 years in prison. As the truth about his violent past was revealed in court, fans got a closer look at how unhinged Geoffrey really is. Most 90 Day Fiancé fans think he got exactly what he deserved and are glad his prison time will be lengthy. It’s great that Geoffrey is no longer a part of the franchise and will never be again. However, many fans argue that he never should have been cast in the first place.

Stephanie Davison

Stephanie Davison Skin Envy Harris Wine In 90 Day Fiance 3

Stephanie was so unstable throughout 90 Day Fiancé season 8 that viewers began to grow concerned about her. Over the course of the season, Stephanie’s slurred speech and half closed eyes made fans suspect she had a serious problem with alcohol and prescription pills. She appeared to be completely strung out on multiple occasions on the show, and her strange social media behavior has also made fans question where her head is at. Stephanie has repeatedly denied any substance abuse problems, but that would mean the strange behavior was all her.

Andrei Castravet

Andrei Castravet 90 Day Fiancé

Fans think Andrei is another cast member who is quick to anger, leaving viewers feeling uneasy. Andrei has gotten into multiple physical altercations with his brother-in-law Charlie Potthast, and both can’t back down from their macho posturing. Andrei has a cocky attitude and a serious sense of entitlement, plus some ideas about gender roles that are need of a major update. The 90 Day Fiancé: Happily Ever After? star’s mood can change on a dime, and when Andrei gets angry, he can be scary.

Though they’re called out by fans as being exceptionally unstable, not all of these 90 Day Fiancé stars’ relationships have failed as a result of their mercurial natures. Some have managed to stay with their partners who have to put up with some seriously difficult behavior. Viewers may not approve of these cast members’ partners’ decision to overlook problematic behaviors, and it’s led to some heated debates about which franchise star is the most unbalanced.

Next: 90 Day Fiancé: The Most Beloved Parents Of Franchise Cast Members