Shark Tank Guest Sharks Season 4 Guest Sharks May 2026

By the time Shark Tank reached its fourth season in 2012, the show had solidified its cultural footprint. The "core five" sharks—Mark Cuban, Kevin O’Leary, Daymond John, Robert Herjavec, and Barbara Corcoran—had developed a legendary chemistry of wit, wisdom, and warfare. However, Season 4 stands out as a pivotal moment when the producers began systematically expanding the panel. To fill seats left vacant by scheduling conflicts (and to test new chemistry for future seasons), a rotating cast of titans stepped into the tank.

If you want to see the show transition from "five friends fighting" to "a rotating panel of experts," start with Season 4. It is the season of the replacement shark, and it worked beautifully. shark tank guest sharks season 4 guest sharks