Bear Grylls, real name Edward Michael Grylls, began his career serving in the British Army reserves as a trooper with 21 SAS.
His time in the SAS ended, following a free fall parachuting accident in Kenya, when his parachute failed to open.
The adventurer, now 44, has since gone on to forge a successful career on the small screen in the US and UK – as well as being appointed as the youngest-ever Chief Scout at the age of 35 back in 2009.
He’s also released a number of books – meaning he’s built up a rather hefty fortune over the years.
But what is Bear’s net worth?
The TV star has shown viewers how they can survive on very little in the wild – but he is thought to have a pretty large sum of money in the bank.
According to The Richest, Bear has an estimated net worth of $20 Million – which equates to a staggering £15,556,000.
In May this year, the publication claimed his website, beargrylls.com, could be valued at $4,800 (£3,700).
Just three years ago, in 2015, The Richest also detailed the earnings he could have scooped from his merchandised products.
The first year of sales of the Bear Grylls’ Ultimate Pro Knife could have seen his brand make $67,280,000 (£52,324,000).
The website also estimated that his merchandising arm in the UK may have also made him 4,440,000 (3,453,565).
Meanwhile, his salary for each episode of Man VS. Wild – which aired between 2006 and 2011 – is an estimated $30,000 (£23,327).
Bear released two books, Mud, Sweat and Tears: The Autobiography, and A Survival Guide for Life, back in 2012.
A year later, he released True Grit – a collection of stories of heroism and survival.
The author has also written a range of children’s books, with approximately three million copies sold – bringing in an estimated $3,900,000 (£3,033,000).
From one TV favourite to another: how much is Sir David Attenborough worth?
The Dynasties presenter made a name for himself as a broadcaster and naturalist.
Now 92, the TV favourite has been named among the 100 Greatest Britons in a UK-wide poll for the BBC – and is widely considered a national treasure.
His broadcasting career spans more than 60 years, and last week, the star returned to the small screen on BBC One – as the first instalment of his latest documentary series, Dynasties, aired.
According to Spear’s, Sir David has an estimated net worth of £24 million.