Actress Kat Dennings is getting candid about the "very harsh" criticism she received about her physical appearance as a child actor.

Kat Dennings has revealed casting directors branded her "fat" and "not pretty enough" when she was a child. The 38- year-old actress has enjoyed a lengthy career, but has insisted the path to success was sometimes painful.

Kat Dennings recalled a casting director calling her 'fat' and not 'pretty enough' when she was 12 years old: 'How can anyone say that about a little kid? This is insane.'

After 25 years of acting, Kat Dennings has seen the entertainment industry become a much more inclusive place.

Since getting her start on the WB sitcom “Raising Dad” 24 years ago, Kat Dennings has seen it all. In a recent conversation with People, Dennings discussed casting directors who were “very cruel” to her even at a young age.

In an exclusive conversation with PEOPLE, Kat Dennings looks back at the harsh critiques she received from casting directors as a child actor and recalls how she was told she was "fat" at just 12 years old.

It was pretty crazy thinking about it. I’m like, ‘How can anyone say that about a little kid? This is insane,'” Dennings recalled.

Kat Dennings has opened up about her early days in the movie industry, revealing that the environment showed little regard for inclusivity.