Jack Nicholson Turns 89: Rare Photo Revealed!

'I just saw Jack a couple of weeks ago - it was his birthday a month ago, and he's great,' he told the outlet at the time.

DeVito maintained a close bond with Nicholson after One Flew Over the Cuckoo's Nest as they appeared in a number of movies together and recalled how he was impressed with the star's grounded attitude when they first met even though his star in Hollywood was rising at the time.

'There was no need for an icebreaker. He was immediately just so embracing... He started out exactly the way everybody else did, where he couldn't get a job. It was like he came to Hollywood and he was just going to write and direct, and then Easy Rider comes along after the (Roger) Corman stuff... So he was in our milieu, and he was always just as open and genuine, and we all felt it immediately,' DeVito said of Nicholson.

The It's Always Sunny in Philadelphia star added: 'Of course, he was doing it because he's that way, and he was also doing it because that had to be, because we had to be all joined at the hip in that movie, and we had such great performances.'

Four years ago, former Fox News host Bill O'Reilly said during an episode of his No Spin News broadcast that reports that Nicholson's mental health had diminished were 'bull.'

'I visited Jack Nicholson a few months ago. I had a long conversation with him and he follows the No Spin News very closely and had all kinds of intelligent questions for me,' O'Reilly said.

'I have been friends with him for decades. He is 85, okay? But he is more intellectually nimble than the president of the United States,' he continued.

Nicholson has been criticized for never acknowledging his paternity of his alleged daughter Tessa, who was born out of his brief affair with waitress Jeanine Gourin. 

In February 2025, Tessa, an aspiring actress, published an essay in Newsweek titled 'I'm Jack Nicholson's Daughter - I Wish People Could Call Me a Nepo Baby.'

'Having grown up without my father, I've sat on the sidelines and watched in frustration as other celebrity children have seamlessly secured roles or been signed to huge agencies,' she wrote.

'More recently, I have grown even more frustrated at what I think is a missed opportunity for these so-called 'nepo babies' to own their position and embrace it instead of complaining about it,' Tessa continued.

While in a separate interview with the Daily Beast, Tessa said that she was told from a young age not to tell people who her father was. She said that the actor is 'a complicated person' and that her birth was 'collateral damage.'

Nicholson had a somewhat controversial upbringing from the start - after his mother, an unmarried showgirl named June Frances Nicholson, gave birth to the actor at age 18, her parents decided to raise him as their own child, pretending that June was his sister.

For nearly four decades, Jack believed that his mom was his sibling, until 1974, when Time magazine uncovered the truth and told him about its findings.

While speaking to Patrick McGilligan for his biography, entitled Jack's Life, the Shining star called it 'the most f***ed thing he had ever heard.'

He also said the discovery was 'dramatic', but added that it 'wasn't' something he'd 'call traumatizing.'

The actor later told Rolling Stone, when asked about the shock revelation: 'I was very impressed by their ability to keep the secret, if nothing else. It's done great things for me.'

June moved away from Jack - who grew up in Neptune City, New Jersey - when he was four to pursue her career as a showgirl. 

But when he was 17, he decided to move out to California to be with her, where he landed a secretary job for animation directors William Hanna and Joseph Barbera at the MGM cartoon studio.

At the same time, he was also studying to be an actor, and he eventually landed his debut role in the 1958 teen drama The Cry Baby Killer.

After that, his career soon took off and Nicholson went on become one of the most well-known actors of all time, landing more than 70 roles in a slew of big movies and TV shows over his 50-year career.

Some of his best-known acting credits include As Good as It Gets, Terms of Endearment, Five Easy Pieces, A Few Good Men, One Flew Over the Cuckoo's Nest, and The Shining.