Dwayne 'The Rock' Johnson
Matt LeBlanc married Melissa McKnight in 2003 and their daughter Marina Pearl was born in 2004. She suffered seizures from eight months old, though it later developed into a form of dysplasia by aged two. The couple later divorced in 2006.
Tom Hardy might play the badboy of your dreams most of the time, but what you might not know is he's a father of two - 8-year-old Louis, with ex-girlfriend Rachael Speed, and his second child, who was born in October 2015 with his wife Charlotte Riley.
You might not know it, but 45-year-old Renner married Sonni Pacheco, who was 20 years his junior, in January 2014, after giving birth to their daughter Ava Berlin in March 2013. They later divorced in December 2014, citing "irreconcilable differences"
This one BLEW OUR MINDS. Before Lamar married Khloe Kardashian in 2009, he had three children - Destiny in1998), Lamar Jr. in 2002 and Jayden in 2005 - with Liza Morales before they separated. Tragically, Jayden died in his sleep in 2006.
You'd be forgiven for not knowing mega babe Sofia Vergara has a 24-year-old son(!!), who she had when she was 19 y/o. She was married at the age of 18 to her high-school sweetheart, Joe Gonzalez, and Monolo was born a year later in 1992. They later divorced in 1993.
It might be because she plays a teenager on Glee, but another actress you might not know has children is Heather Morris -who gave birth to a son Elijah Beckwith Hubbell in September 2013 and second son Barlett Hubbell in February 2016.
Idris has a 14-year-old daughter Isan, from his marriage to Hanne 'Kim' Norgaard (whom he divorced in 2003), and a son, Winston, who was born in 2014 with his then-girlfriend Naiyana Garth.
The real shock comes now, though, because in 2010, Elba told the press he had fathered a little baby boy - only to later find out it wasn't actually his. Speaking to GQ about what happened in 2013, he explained: "It wasn't immediately obvious—well, it was, because he didn't look like me. But it wasn't immediately obvious what had gone down.
"To be given that and then have it taken away so harshly," he recalled, "was like taking a full-on punch in the face: POW."
Unless you're a big fan of Kung Fu Panda 3, you probably didn't know Kate Hudson has two sons. One, 12-year-old Ryder Robinson with The Crowes singer Chris Robinson, and 5-year-old Bingham Hawn Bellamy with Muse frontman Matt Belamy.
Dwayne's first child Simone was born in August 2001 to Dany Garcia, and when the split in 2007, he hooked up with Lauren Hashian. Their first daughter Jasmine was born in December 2015.
Kelly has two children with husband Brandon Blackstock; two-year-old River Rose and Remington Alexander, who was born in April this year - which might explain why it's not super common knowledge that she has children.
Stereotypically known for being an absolute badass (which you can do whilst being a mother, obvs), 30-year-old Megan Fox has three children with husband Brian Austin Green. Noah Shannon is four, Bodhi Ransom is two and Journey River was born in August 2016. ADORABLE.
Again, it might be because she plays a school girl in Pretty Little Liars, but Tammin welcomed Phoenix Emmanuel with husband Sean McKewan in 2014.