He’s the man you don’t want to mess with but you’ll certainly want his approval on The Block, so who exactly is GMac, and what does he do on site?

GMac a.k.a ‘The Mac Daddy’ is the strict rule enforcer and Site Supervisor on The Block 2025. But it seems he’s adopted a new title on site…
Meet The Mac Daddy. (Nine)
House 5’s Mat has made it no secret that GMac “terrifies” him.

“I’m so scared of him!” he confessed.

Mat also confessed that whenever GMac enters the room, a hilarious but particular theme song comes to mind (and title too).

But that’s not Mat’s only comparison!

Who is GMac on The Block 2025?

Nothing gets past GMac and his all-important sign-off.

In the words of House 4’s Sonny and Alicia: “He’s the maker or breaker, the man above Foreman Dan.”

In the words of House 5’s Mat: “G Daddy, he terrifies me.”
Terrified. (Nine)
As Guest Bathroom Week kicked off, this year’s Blockheads had one more hurdle before waterproofing could officially start.

That hurdle was GMac’s inspection. Without GMac’s sign off, no waterproofing would be allowed.

“I’m so scared of him, he reminds me a little bit of Professor Snape,” Mat drew a comparison between the foreman and the Harry Potter star.

“It’s because he has his phone with all of his checklist and it’s terrifying and he moves really slowly when he’s judging your room,” said Mat. “The thing is, if you haven’t done something right he will eat you alive.”

“If he looks at your wall and it’s not perfect, your wall is coming down.”

If there’s one thing you don’t want to do, that’s waste GMac’s time.

“GMac is a beautiful man… he never smiles,” spilled House 3’s Taz.
He also apparently “doesn’t do hugs”. But one thing GMac does appreciate is the willingness to learn and good ol’ hard work.

Show up and take initiative and you just might get a smile and handshake from the man himself.
We see you, GMac. (Nine)

What is GMac’s experience on The Block?

GMac is also the “head know-it-all” of Nine in Six, the builders overseeing all five houses on The Block this year.

A force of nature, fans may remember GMac from The Block’s 20th season on Phillip Island. Anything Foreman Dan and GMac says, it goes.

“You don’t want to p–s him off, because then you’re in trouble,” warned Sonny with a smile.
Blockheads past and present know the wrath of GMac. (Nine)
GMac also certainly made his mark during the 2022 Gisborne season.

As winners Omar and Oz were dealt the harsh truth to “forget about winning” but rather do the job right.

Turns out that was some pretty solid advice, as the stars walked away winners of The Block 2022 in the end!

The Block airs Sundays at 7pm and continues Monday to Wednesday at 7:30pm and Sunday at 7:00pm on Channel 9 and 9Now.