Mathieu Baron reveals new relationship after high-profile split, keeps partner's identity private

Key facts

• Mathieu Baron confirmed he is in a new relationship during an interview with 7 Jours published April 2, 2026.
• He ended his relationship with real estate agent Alexandra De Simon in spring 2025; she later posted a video about being a single mother six months pregnant.
• Baron has two children with De Simon: Cooper and Vittoria.
• He lost about twelve pounds through rigorous training with his new partner.
• Baron's character Maxime Dubois on Indéfendable faces a life-changing situation in the season finale.
• He has co-written a feature film with host Richard Turcotte and is developing a trilingual cooking-travel show for Food Network Canada.
• Baron previously hosted the documentary series J'ai frôlé la mort.
• He shared a photo on social media of himself with his new partner, whose face was obscured.

A new chapter for the actor

Mathieu Baron, the actor best known for playing detective Maxime Dubois on the hit Quebec daily drama Indéfendable, has confirmed he is in a new relationship. In a wide-ranging interview with 7 Jours published Thursday, April 2, 2026, Baron spoke candidly about his personal life for the first time since his highly publicized split from Alexandra De Simon roughly a year ago. Baron described his new partner as a “merveilleuse” person who has “literally changed his outlook on life.” He emphasized his desire to keep the relationship entirely private, saying he wants to protect their intimacy and shield the budding romance from the media spotlight. The actor has not revealed her name or shown her face publicly; a recent social media post featured a photo of the couple with her face obscured, sparking curiosity among fans.

From heartbreak to happiness

Baron’s previous relationship with real estate agent Alexandra De Simon ended in spring 2025, a breakup that generated intense media coverage. The situation escalated when De Simon posted a widely circulated video on social media in which she described, in English, facing her days as a single mother, six months pregnant, and a working professional. The couple share two young children: Cooper and Vittoria, whom Baron says remain his absolute priority. Now, the actor says the new relationship has brought him immense personal joy. He revealed that he and his partner work out together, a routine that helped him shed about twelve pounds after nearly two years of sedentary living. “It’s extremely motivating to train with her,” he said, linking his renewed fitness directly to his happiness.

Indéfendable season finale leaves Maxime’s fate uncertain

Baron’s character on Indéfendable, Maxime Dubois, faced a dramatic fall in the season finale last week, leaving viewers wondering whether the detective survived. In the interview with 7 Jours, Baron had teased that the finale would be “pretty big,” revealing that Maxime would find himself in a situation that makes him very uncomfortable with his longtime friend Léo. “Toward the end of the season, something happens to Maxime that will change a lot of things for him,” Baron said, urging fans not to miss it. The actor noted that Maxime’s backstory includes an extremely violent father, adding that it will be interesting to see how the detective evolves personally in response to the new challenges. Baron expressed gratitude for the wave of public affection he received last autumn when Maxime’s temporary absence from the show sparked concern among fans, proving how much viewers enjoy seeing him in their living rooms four nights a week.

New horizons beyond the police procedural

While Baron feels fortunate to be part of the Indéfendable team, he is eager to explore new television and film opportunities. Acknowledging with self-deprecation that his “camera age” has changed and he no longer belongs to the category of young leads in their mid-twenties or early thirties, he hopes his new maturity will open doors to roles far removed from his usual casting as a police officer or a “troublemaker.” He joked that he would even happily dress up as a kangaroo for a children’s show. Beyond acting, Baron remains active behind and in front of the camera. After hosting the poignant documentary series J'ai frôlé la mort, where he collected testimonies from survivors of near-death experiences, he has finished writing a feature film in collaboration with his longtime friend, host Richard Turcotte. He is also working on a cooking-and-travel show concept set in Italy, to be filmed in three languages, currently in discussions with Food Network Canada.

Fatherhood and family roots

Baron’s children remain at the center of his life. He recently posted a photo with his son Cooper on social media, accompanied by a heartfelt message comparing the boy to his great-grandfather Pompeo: “You are like him… smiling, jovial, a little handsome, both physically and mentally, all you want is pasta, good company, and to play tricks on those you love.” He expressed hope that one day he can pass on to his children a love of sportsmanship and camaraderie, and take them to Europe to discover their Italian roots. The actor said fatherhood excites him daily, and he looks forward to sharing his cultural heritage with Cooper and Vittoria. His new relationship, he added, has only deepened his appreciation for life.

Privacy as a priority

Despite the public curiosity surrounding his new romance, Baron has drawn a clear boundary. He stated unequivocally that he wants to keep this relationship entirely out of the public eye, a decision that has been met with understanding from many fans and media outlets. “Everyone has the right to their secret garden,” he said, and his need to protect this nascent bond from the glare of publicity is completely understandable. By choosing to reveal only that he is in a relationship without naming or showing his partner, Baron has managed to share his happiness while maintaining control over his private life. It is a mature approach that allows him to focus on what matters most: his family, his craft, and the new love that has brought him such joy.

The bottom line

• Mathieu Baron is in a new relationship but refuses to disclose his partner’s identity to protect their privacy.
• His split from Alexandra De Simon in spring 2025 was highly publicized; they have two children together.
• Baron’s character on Indéfendable may have been killed off in the season finale, leaving fans in suspense.
• He is expanding his career with a co-written feature film and a trilingual cooking show for Food Network Canada.
• Fatherhood remains his top priority, and he hopes to share his Italian heritage with his children.
• The actor credits his new partner with motivating him to get back in shape, losing twelve pounds through shared workouts.