Where Is Big Brother's Johnny Mac Now? The Secret Life Of The Rockstar Dentist, Dr. John McGuire

For fans of *Big Brother 17*, few houseguests left a mark quite like John McGuire, better known as "Johnny Mac," the loud, lovable, and surprisingly strategic "Rockstar Dentist." His signature laugh and chaotic energy made him an instant fan-favorite, but after his season concluded, he did something almost unheard of for a reality TV star: he vanished. As of December 17, 2025, the latest information confirms that Dr. John McGuire has successfully retreated from the spotlight, choosing a quiet, professional life over the celebrity circuit. This article dives deep into the life of the BB17 legend, from his unforgettable time in the house to his thriving—and very private—professional career today, exploring why he decided to go completely "incognito" and leave the world of reality TV behind.

Dr. John McGuire: A Complete Biography and Profile

John McGuire, DMD, entered the *Big Brother* house with a unique persona that immediately set him apart. He was a successful professional who also harbored a passion for music, earning him the famous "Rockstar Dentist" nickname. His biography paints a picture of a dedicated professional from Pennsylvania who briefly traded his dental chair for the drama of reality television.

• Full Name: Dr. John R. McGuire, DMD
• Nickname: Johnny Mac, The Rockstar Dentist
• Approximate Age (2025): 36–37 years old (He was 27 during BB17 in 2015)
• Hometown: Scranton, Pennsylvania
• Current Residence: Jefferson Township, Pennsylvania
• Occupation: Practicing Dentist
• Reality TV Appearance: *Big Brother 17* (BB17)
• BB17 Placement: 4th Place (Evicted, returned via a twist, and then evicted again)
• Defining Trait: His distinctive, loud laugh and his willingness to play both sides of the house, often feigning ignorance to protect himself.

The Chaotic Strategy and Unforgettable Moments of BB17

Johnny Mac’s run on *Big Brother 17* was a masterclass in chaotic but effective gameplay, making him one of the most memorable houseguests of his season. His strategy was less about forming tight alliances and more about being a crucial number that everyone wanted to keep around—until it was too late.

His game was characterized by a unique blend of self-deprecation and clutch competition wins. He was often seen as a floater due to his laid-back demeanor, but this perception allowed him to avoid the target for a long time. The houseguests saw him as harmless, a mistake that nearly cost them the game.

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The most iconic moment of his season was undoubtedly the "Twin Twist" and his role in it. He was initially evicted but immediately won the Battle Back competition, re-entering the house and nullifying his eviction. His return cemented his status as a fan-favorite who could never be counted out.

Key moments from his BB17 journey include:

• The Battle Back Twist: After his first eviction, he won the competition to return to the house, demonstrating his competitive edge when his back was against the wall.
• The Rockstar Dentist Persona: His constant, booming laughter became a signature sound of the season, often baffling and endearing his fellow houseguests and viewers alike.
• Aligning with Steve Moses: Towards the end of the game, his partnership with eventual winner Steve Moses proved pivotal, though he ultimately fell short of the final two, finishing in a respectable 4th place.

Where is Johnny Mac Now? The Incognito Life of Dr. John McGuire

The biggest question for any reality TV fan is what happened to their favorites after the cameras stopped rolling. For Johnny Mac, the answer is a refreshing return to normal life. While many former houseguests chase fame, Dr. John McGuire chose to step completely out of the reality TV spotlight, embracing a private and professional life.

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A Full-Time Return to Dentistry

Unlike many reality stars who leverage their 15 minutes of fame, John McGuire immediately returned to his career as a dentist. He is currently a practicing Doctor of Dental Medicine (DMD) in Pennsylvania. This is not a side gig; it is his primary, thriving profession.

He is associated with Electric City Dentistry, which has multiple practice locations in his home region, including Scranton, Eynon, and Archbald, PA. The fact that he is still actively practicing in his local community confirms his commitment to his career over celebrity status.

Quitting Social Media and Living "Incognito"

Perhaps the most telling sign of his desire for privacy is his near-total disappearance from social media and *Big Brother* fan circles. Reports from the fan community indicate that he made a conscious decision to quit social media and live "incognito."

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He has expressed that he is "passed that point in his life" and prefers not to discuss his time on *Big Brother*. This is a rare stance in the modern age of reality television, where contestants often rely on their online presence to maintain relevance. His choice to step away speaks volumes about his priorities.

The Status of the "Rockstar" Music Career

While he was famously known as the "Rockstar Dentist," his focus has clearly shifted back to his dental practice. While he has been confirmed to still do music, concrete, up-to-date information about his band or any new releases in 2024 or 2025 is scarce. This lack of public update further supports the narrative that he is living a private life, with his music likely being a personal passion project rather than a public-facing career.

In a world where reality TV stars are constantly vying for attention, Dr. John McGuire's decision to prioritize his professional life and privacy is a unique and admirable choice. He remains a beloved figure in *Big Brother* lore, but for now, the only way to see the "Rockstar Dentist" is to book an appointment in Scranton, Pennsylvania.