The star of “The Greatest Showman” brought his younger brothers to the circus on Thursday.

In his role as a big brother, Zac Efron is putting on “the greatest show”!

The 35-year-old Iron Claw actor recently took his 3-year-old sister Olivia and infant brother Henry to see Circus Vargas in their birthplace of San Luis Obispo.

The Greatest Showman actor could be seen embracing his younger siblings while carrying them on each arm in a photo that was uploaded on Instagram on Thursday.

He jokingly tagged the photo “Showtime” with a clown face emoji.

While his sister and brother grinned away from the camera and leaned one arm around Efron’s neck with the other hand resting on his chest, Efron was sporting a bucket hat with sunglasses perched atop it.

Later, the Baywatch actor shared an Instagram story from inside the circus, where a seesaw act with a guy and woman jumping on one end and another woman flipping backward onto the top of a human pyramid took center stage.

The audience’s attention was immediately drawn to a grinning Zac Efron sitting next to Henry with Olivia on his lap. As the crowd applauded the artists, Henry was spotted seated alongside Zac’s father David Efron.

Having previously shared pictures of his younger siblings on social media, the former High School Musical star has a soft spot for them.

This year’s Valentine’s Day saw Efron posting a sweet photo of himself reading with his sister, Olivia, who was holding a wolf stuffed animal under her chin.

Efron posted a photo of himself without a shirt and with a mustache, writing the caption “My valentine”.

In December of last year, the actor also sent a heartfelt birthday tribute to his younger sister.

Efron kissed Olivia on the head in a succession of two Instagram images, and they shared a tender stare that warmed hearts.

The actor captioned the photo, “Happy birthday little sis.”