Colin Biography: Big Brother Australia 2025 Star’s Age, Personal Life, Career & Net Worth

Colin Biography: Big Brother Australia 2025 Star’s Age, Personal Life, Career & Net Worth

Looking for everything you need to know about Colin from Big Brother Australia 2025? This in-depth biography covers his age, early life, MMA ambitions, on-screen romance, mental health journey, social media presence, and a realistic look at his current net worth and future earning potential as one of the breakout stars of the 2025 season.

Who Is Colin on Big Brother Australia 2025?

Colin is one of the standout housemates on Big Brother Australia 2025 (Season 16). He quickly became a fan favourite thanks to his mix of cheeky humour, chaotic energy and honest emotional moments in the diary room.

According to his official Big Brother profile, Colin is a 21-year-old aspiring MMA fighter from Wollongong, New South Wales, described as “all cheek, charm and utter chaos” with “energy [that] is next level.”

The Big Brother Wiki lists his full name as Colin Ridley, confirming his role as a housemate on Big Brother Australia 16, and noting that he’s known as a loud, loveable “livewire” who’s always ready to stir the pot and steal the limelight.

On the show, Colin’s storylines have largely focused on:

• His aspiring MMA career
• His complicated romantic entanglement with fellow housemate Holly
• His emotional vulnerability, with diary room breakdowns that sparked concern among viewers about his wellbeing

All of this has helped turn him into one of the most talked-about contestants of the 2025 season.

Colin’s Age and Early Life

How Old Is Colin?

Public records and the Big Brother fan database list Colin Ridley’s date of birth as 16 April 2004, which makes him 21 years old during Big Brother Australia 2025.

This also lines up with the age given on his official Big Brother profile, which describes him as 21 at the time he entered the house.

Where Is Colin From?

Colin hails from Wollongong, New South Wales, a coastal city south of Sydney known for its beaches and strong sports culture.

Growing up in Wollongong appears to have shaped two core things about him:

1. An outdoorsy, high-energy personality – perfect for someone who thrives on physical challenges.
2. A down-to-earth, straight-talking Aussie attitude that comes through clearly in the Big Brother house.

Family Background (What’s Public and What’s Private)

So far, Colin has kept details about his parents, siblings and wider family life mostly private. Neither his official profile nor major media coverage go deep into his family background, beyond casual mentions of being a “proud mama’s boy” who is very close to his mum.

That combination of tough exterior and soft spot for his mum has helped fans connect with him as a real, relatable person rather than just another reality TV contestant.

Colin’s Career: Aspiring MMA Fighter

Before walking into the Big Brother house, Colin wasn’t a TV star – he was hustling as an aspiring MMA (mixed martial arts) fighter.

His official Big Brother 2025 profile lists his occupation as “Aspiring MMA fighter”, emphasising that he’s always up for fun activities and physical challenges.

What Does “Aspiring MMA Fighter” Mean for Colin?

Being an aspiring MMA fighter typically means:

• Spending hours in the gym working on striking, grappling, strength and conditioning
• Competing (or preparing to compete) in local amateur promotions
• Building a name slowly through fights, training footage and social media

While detailed fight records for Colin are not widely documented in mainstream media yet, the way he’s described on the show paints him as someone who takes his physical training and athletic identity seriously, even if he’s still early in his professional journey.

How Big Brother Helps His MMA Dreams

Big Brother Australia gives Colin:

• Massive exposure: Millions of viewers now know him as “the MMA guy from Wollongong”
• Potential sponsorship opportunities from gyms, apparel brands, supplements and combat sports promotions
• A future platform for:
  • Fight announcements
  • Training vlogs
  • Brand collaborations linked to fitness and fighting

If he plays his cards right after the show, Big Brother could be the launchpad that turns his MMA dream into a sustainable career.

Colin on Big Brother Australia 2025

Entry Into the House

Colin is part of the Big Brother Australia 2025 (Season 16) cast, which introduced a group of new housemates in November 2025. Official cast lists describe him as one of the high-energy players shaping this back-to-basics, social-strategy-focused season.

From night one, Colin positioned himself as:

• The fun, cheeky guy
• The physical competitor
• The social connector who gets along with many different housemates

Personality and Game Style

Across official bios and fan write-ups, Colin is consistently described as:

• Loud and loveable
• Chaotic and spontaneous – he often says yes before thinking it through
• Someone with the “gift of the gab” – he can talk his way into or out of situations
• A natural pot-stirrer who enjoys shaking up the house dynamics

In game terms, that translates into:

• Strong social play – he’s often at the centre of conversations, jokes and alliances
• A potential physical asset in challenges
• A bit of a wildcard, which can be both his strength and his weakness

Colin & Holly: Big Brother Romance and Reality

One of Colin’s biggest storylines in the Big Brother house is his complicated relationship with fellow housemate Holly, a 31-year-old model.

Entertainment outlets and recaps have followed their connection closely:

• Coverage notes that Colin’s heart-on-his-sleeve honesty has made him endearing, and that he and Holly have developed a growing closeness that he isn’t ruling out as a romance.
• Articles focused on their dynamic ask whether Holly and Colin are “actually dating”, exploring how their flirtation developed under constant surveillance and within the game environment.

There have also been:

• NSFW-adjacent livestream moments that got viewers talking and questioning just how intimate things became between the pair on camera.
• Emotional arguments and tense scenes that highlighted how difficult it can be to maintain a relationship in such a high-pressure, confined environment.

Are Colin and Holly Still Together?

At the time of writing, their official relationship status outside the house hasn’t been fully locked in publicly. Coverage suggests they have had to defend themselves against accusations of playing up a “showmance” purely for the game, insisting their feelings are genuine.

For now, they’re best described as:

• A major Big Brother 2025 power couple storyline
• Two people navigating real feelings in an unreal environment
• A pairing that could, depending on how things go after the show, either:
  • Turn into a long-term relationship, or
  • Become one of those unforgettable Big Brother romances that lived mainly within the walls of the house

Colin’s Mental Health and Viewer Concerns

One of the most humanising aspects of Colin’s time on the show has been his emotional vulnerability.

Media outlets have reported that Colin has had several tearful confessions in the diary room, prompting concern from viewers about his wellbeing and leading Channel 10 to respond and reassure audiences that welfare protocols are in place.

This side of Colin shows that:

• Behind the bravado and banter, he genuinely struggles with pressure, scrutiny and conflict
• He’s not afraid to cry on national TV, breaking damaging stereotypes around male toughness and emotional suppression
• His journey on the show is about more than just drama – it touches on mental health, vulnerability and resilience too

For many fans, this honesty is exactly what makes him so compelling and relatable.

Social Media Presence and Growing Fame

As a modern reality star, Colin’s influence doesn’t end with traditional TV.

Instagram and Online Following

The Big Brother Wiki lists Colin’s Instagram handle as @colinridleymma, reflecting both his identity and his MMA aspirations.

Through Instagram and other social platforms, Colin can:

• Share training clips and fight updates
• Post behind-the-scenes content from his Big Brother journey
• Partner with brands across:
  • Sports and fitness
  • Streetwear
  • Energy drinks and supplements
  • Lifestyle and entertainment

As the season continues and especially after it ends, his follower count is likely to rise, converting Big Brother airtime into long-term personal branding.

Colin’s Personal Life: Relationships, Hobbies & Personality

Outside the core storylines of MMA and Big Brother, what do we know about Colin’s personal life?

Relationships

• Romantic life: At the moment, his romantic storyline is dominated by Holly, his Big Brother co-star. Whether their feelings survive outside the house remains to be seen, but inside the game, their connection is a major narrative driver.
• Friendships: Colin has gravitated towards other bold personalities in the house. He’s often seen joking, scheming and clashing with housemates in the so-called “underwear boys” crew, who have been criticised by some for their constant shirtless antics.

Personality Traits

From profiles and episodes, Colin’s personality can be summed up as:

• Extroverted and talkative – he “could talk underwater”
• Impulsive – says yes before thinking through the consequences
• Fun-loving – thrives in games, pranks and late-night chats
• Emotionally open – doesn’t hide when he’s hurting or overwhelmed
• Competitive – both in physical tasks and social manoeuvring

These traits make him:

• A natural reality TV character
• A potential media personality if he chooses to continue in the spotlight

Colin’s Net Worth in 2025

What Is Colin’s Net Worth?

As of late 2025, Colin’s exact net worth is not publicly disclosed. There are no verified financial statements or trustworthy reports giving a specific dollar figure.

Given his age (21) and the fact that Big Brother is his first major TV appearance, it’s realistic to say:

• His pre-show net worth was likely modest, based mainly on:
  • Casual work or early-career income
  • Small-scale MMA related earnings (if any)
• His current and future net worth will depend heavily on:
  • How far he goes in Big Brother (and whether he wins any prize money)
  • How well he monetises his fame afterward

For SEO purposes, some sites might be tempted to throw out a random figure like “$100,000–$300,000,” but that would be speculative and not backed by solid evidence. A more honest way to frame it is:

Colin’s net worth in 2025 is best described as “emerging.” He is in the early stages of his career, with Big Brother now giving him the platform to grow his income through TV opportunities, sponsorships, and potential MMA success.

Potential Income Streams After Big Brother

Post-show, Colin could potentially build wealth through:

1. Reality TV & Media Appearances
   • Guest spots on talk shows and panel programs
   • Appearances at events and Big Brother reunion specials
2. Social Media & Brand Deals
   • Sponsored posts on Instagram and TikTok
   • Long-term partnerships with fitness, fashion and lifestyle brands
3. MMA & Combat Sports
   • Fight purses from regional and national promotions
   • Affiliate deals with gyms, training academies and sporting goods companies
4. Merchandise & Personal Branding
   • Clothing lines linked to his catchphrases, personality or MMA journey
   • Paid meet-and-greets or training seminars if his fight profile grows

If he manages these opportunities strategically, Colin’s net worth could rise significantly over the next few years, but at this stage, it’s more about potential than confirmed wealth.

What’s Next for Colin After Big Brother?

While the season is still unfolding, a few likely paths lie ahead for Colin:

1. Continue in Reality TV & Media
   With his loud, loveable persona and proven camera presence, Colin could easily be invited onto other reality formats or guest TV spots.
2. Double Down on MMA Big Brother has introduced Colin to a national audience. He can now leverage that exposure:
   • To secure better training situations
   • To attract sponsors
   • To sell tickets when he fights
3. Grow as a Content Creator By consistently posting:
   • Training footage
   • Honest chats about mental health, relationships and resilience
   • Fun lifestyle content

   Colin could build a loyal online community that sustains his popularity long after BBAU 2025 ends.

4. Capitalize on the Holly Romance (If It Continues) If he and Holly remain together outside the house, they could:
   • Create joint content
   • Appear together on shows or at events
   • Build a brand as a Big Brother power couple

Final Thoughts: Why Colin’s Story Resonates

Colin’s biography isn’t just about a 21-year-old from Wollongong who likes to fight and flirt on TV.

It’s the story of:

• A young Australian dreamer trying to turn his love of MMA and his big personality into a real career
• A reality star who’s willing to show both bravado and vulnerability, laughing in one scene and crying in the diary room the next
• Someone whose net worth is currently small but whose potential is massive, thanks to the platform Big Brother has given him

As Big Brother Australia 2025 continues and the finale approaches, one thing is clear: whether he wins the show or not, Colin Ridley has already secured his place as one of the most memorable faces of the season – and his journey is only just beginning.