The "Shark Tank" cast is heartbroken over Mark Cuban's decision to leave the hit business and entrepreneurship reality series. "Like losing a brother, it's terrible. I know I'll get over it; I hope I'll get over it,

As Mark Cuban bids Shark Tank farewell, he's looking back on the things he'll miss the most. While exclusively speaking to PEOPLE about the upcoming 16th season of the business show, Cuban, 66, opened up about the emotions he was feeling as he headed into filming his final day.

Tears welled in Kevin O’Leary’s eyes as he recalled a time that Shark Tank costar Mark Cuban got him out of a rut. During a recent appearance on Who's Talking to Chris Wallace?, Kevin, 70, opened up about his time in the political sphere in Canada in 2017.