Frankie Muniz says he walked off the 'Malcolm in the Middle' set for two episodes, and would 'never' let his kid go into show business

• Frankie Muniz said that he walked off the "Malcolm in the Middle" set for two episodes.

• The star said that everyone on the set was afraid to speak out against "certain people."

• Muniz has also said that he wouldn't let his kids go into showbiz.

"Malcolm in the Middle" star Frankie Muniz said that he walked off set for two episodes of the beloved 2000s sitcom.

The former actor starred in the sitcom — which revolves around child genius Malcolm (Frankie Muniz) and his dysfunctional family — for seven seasons from 2000 to 2006.

It set Muniz up for a huge career, and he went on to star in films including "Big Fat Liar," "Agent Cody Banks," and "Racing Stripes."

Muniz, 38, told his campmates on the reality TV show "I'm a Celebrity… Get Me Out of Here" that he had such a successful career that he made $40 million by age 19 and could retire. Aside from a handful of minor TV and film roles, Muniz left acting behind for a career as a racing car driver.

But Muniz also opened up about the difficulties of working in Hollywood on "I'm a Celebrity."

He said: "There were two episodes I'm not in. I walked off the set. Everyone was so afraid to stand up when certain people were controlling or rude or disrespectful. They walked on pins and needles."

He went on: "I was so mortified by seeing people afraid to stand up for themselves, I was like: 'Say something.' I didn't care if they told me I was never going back, because it was worth it to me. It helped that the show was based around me."

Representatives for "Malcolm in the Middle" creator Linwood Boomer did not immediately respond to a request for comment from BI.

Muniz said his friends had 'insanely negative experiences' in show business

Muniz isn't the only former child star to open up about the difficulties of working in show business. Most recently, Drake Bell of "Drake and Josh" spoke publicly for the first time about being sexually abuse as a child actor in the documentary "Quiet on Set," while "iCarly" star Jeanette McCurdy has said her "whole childhood and adolescence were very exploited."

Before heading into the jungle for "I'm a Celebrity…," Muniz told Pedestrian TV that he wouldn't let his children follow in his footsteps.

"I would never let my kid go into the business. And not that I had a negative experience, because to be honest, my experience was 100 percent positive," said Muniz, who has a son, adding: "But I know so many people, friends that were close to me, that had such insanely negative experiences."

He went on: "I just think it's an ugly world in general. I never cared about rejection, but there's a ton of rejection."

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