Debi Mazar says 'Entourage' set 'got toxic' after she returned from having her second daughter

"Entourage" star Debi Mazar is opening up about what she described as a difficult experience on the set of the hit show.

The actress, who played no-nonsense publicist Shauna Roberts throughout the HBO show’s eight-season run, reflected on her experience in a recent interview with The Sunday Times , calling the first season a "joy-fest" before saying the atmosphere shifted.

"In the third season, the set was a testosterone-fueled environment," Mazar told the outlet.

"I’m tough, but it got toxic towards the end for me." JACK OSBOURNE FIRES BACK AT BODY SHAMERS CALLING HIM 'GROSSLY UNDERWEIGHT' Mazar, 62, said she returned to work after welcoming her second daughter and felt judged over her appearance.

"They didn’t like that I got fat, even though I got skinny again," she said.

The "Goodfellas" star said the situation was complicated in part because she has never been one to keep quiet about how she feels.

Still, Mazar stressed that she remained professional and was grateful for her time on the series.

"It was a lot of fun, until it wasn’t," she said.

Fox News Digital reached out to HBO for comment.

"Entourage," which followed the highs and pitfalls of a rising actor navigating Hollywood with his childhood friends, ran on HBO from 2004 to 2011.

Mazar reprised her role as Shauna in the 2015 movie based on the series.

GET ENTERTAINMENT SCOOP DELIVERED RIGHT TO YOUR EMAIL BY CLICKING HERE Mazar is among several stars who have recently opened up about their "toxic" experiences on Hollywood sets .

Earlier this year, Rose McGowan said Hollywood executives openly obsessed over her fluctuating weight during her stint on "Charmed" in the early 2000s.

During an appearance on the "We Need to Talk" podcast, McGowan — who joined the cast in 2001 — recalled how show executives would often mull over her weight gain or loss.