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This season proved that Shark Tank could survive without its original cast. It introduced the concept of the "Guest Shark" as a permanent fixture of the show’s ecosystem.

Shark Tank, the popular reality TV show where entrepreneurs pitch their business ideas to a panel of investors, known as "Sharks," has been entertaining audiences for over a decade. In Season 4, which aired from September 2012 to May 2013, the show introduced a new dynamic to the main tank: guest Sharks. These guest Sharks were successful entrepreneurs and business leaders who joined the regular Sharks, Mark Cuban, Kevin O'Leary, Daymond John, Barbara Corcoran, Robert Herjavec, and Lori Greiner, to invest in or reject the business ideas presented to them.

If you are binge-watching Shark Tank on Hulu or Amazon, The friction between Chris Sacca and Mark Cuban is worth the price of admission alone. These guest sharks brought fresh cash and fresh tempers, revitalizing the show for the next decade.

Yes! Chris Sacca became a fan favorite and returned multiple times in later seasons (Seasons 5, 6, and 7) before retiring from the show. John Paul DeJoria returned as a guest in Season 7. Nick Woodman also popped back in for Season 7.

The Billionaire with the Big Swing Chris Sacca was the breakout star of Season 4. A prolific venture capitalist (Lowercase Capital) and early investor in Twitter, Uber, and Instagram, Sacca brought a quirky, intense energy to the tank. He famously wore bright cowboy shirts and was unafraid to fight Mark Cuban tooth and nail.

In this article, we'll take a look back at the guest Sharks who appeared on Shark Tank Season 4 and highlight their notable investments.

: A technology entrepreneur who built a world-class cybersecurity firm.

Some notable guest Sharks in Season 4 included:

Throughout all of these rotations, the core desk remained strong. You always had: