“Ambassadors of the American Dream” Shark Tank investor Kevin O’Leary bids farewell to Mark Cuban 

Kevin O’Leary may be known for his tough love and sharper-than-shark-teeth critiques, but even he got sentimental during Mark Cuban’s emotional sendoff on Shark Tank. After 15 seasons of deal-making and the occasional on-screen brawl, Cuban took his final swim in the May 16 episode—prompting Kevin O’Leary and the rest of the panel to put aside their rivalries and pay tribute to the billionaire who helped turn the show into a business TV powerhouse.

"I'm so proud of what we've all built together," O'Leary said during a toast to the departing shark.

Elaborating:

"We have become ambassadors of the American Dream around the world. So much of it is because of you."

It was the end of an era on Shark Tank, as one of the show’s biggest icons said goodbye in a moment that had fans feeling all the feels. Mark Cuban, 66, who swam into the tank back in Season 2, officially wrapped up his run, bringing his signature mix of star power, sharp instincts, and straight talk to a close. Over the years, Cuban didn’t just invest in businesses, he helped turn the Emmy-winning series into a full-blown cultural phenomenon.

Cuban cited family reasons for his departure, capping off a remarkable 15-year run that saw him mentor countless entrepreneurs while engaging in memorable bidding wars with his fellow sharks.

Kevin O’Leary’s surprising tribute to Mark Cuban on Shark Tank

Many viewers who were aware of the pair's contentious arguments over investing techniques over the years were taken aback by Kevin O’Leary's sincere toast. Kevin O’Leary, who was known as "Mr. Wonderful" for his frequently frank candour with business owners, genuinely appreciated Cuban's contributions.

The tribute wasn't without Kevin O’Leary's trademark humor, however. After his initial praise, he couldn't resist adding:

"Of course, we don't always agree. And sometimes you learned a lot from me."

The playful jab drew laughs from everyone in the room, maintaining the friendly rivalry that made their interactions compelling television. Cuban later got the last word, telling USA TODAY via email that:

"Kevin may be confused about business often, but he has a big heart and does care about his entrepreneurs."

Fellow shark Barbara Corcoran, whom Cuban has named as the investor he admires most, delivered perhaps the most touching farewell.

"Mark, having you leave is really like having a big brother leave the house," she said, words that visibly moved Cuban during the episode.

The former Dallas Mavericks owner brought a unique perspective to the tank. In a highlights reel that aired during his final episode, Cuban acknowledged:

"I had an edge,"

But he also emphasized his deep connection to the entrepreneurs seeking investments.

"I've been in their shoes, I've been broke, I've been sleeping on the floor," he explained, highlighting the authentic empathy that made him a favorite among contestants and viewers alike.

Cuban’s legacy beyond the Shark Tank

Cuban's departure marks a significant transition for Shark Tank, which has won five Emmy Awards and developed a global following. Fellow shark Daymond John summed up Cuban's broader impact during the farewell toast:

"He continues to change the world, and I love you, man."

Cuban responded simply:

"I love you, too."

As the episode closed, Cuban raised a glass to both his fellow investors and the audience that supported the show.

"I've learned so much from all of you. And to Shark Tank, the people who supported us, to the people who love us. I love you guys like family."

The farewell episode is now streaming on Hulu, allowing fans to witness the end of Cuban's remarkable run as television's most famous shark.

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You can watch Shark Tank on ABC.New episodes air on Fridays at 8 p.m. ET/PT. If you miss the live broadcast, episodes are available to stream the next day on Hulu.