Who's who among the sharks _ a quick look at the 6 investors on reality TV show "Shark Tank"

A look at the six investors who appear on the reality TV show "Shark Tank":

BARBARA CORCORAN

Founder of New York real estate brokerage The Corcoran Group, which she sold for $66 million in 2001. Owns Barbara Corcoran Inc., the company that sets up her media and TV appearances including "Shark Tank."

MARK CUBAN

Owner and investor in companies including the NBA's Dallas Mavericks, cable TV channel AXS TV and film distributor Magnolia Pictures.

LORI GREINER

Creator of and investor in retail products including jewelry, housewares and home furnishings. Sells merchandise on home shopping channel QVC.

ROBERT HERJAVEC

Founded and sold several technology companies, now owns Herjavec Group, a technology security services company headquartered in Dallas and Toronto. Also appears on "Dragons' Den," Canada's equivalent of "Shark Tank."

DAYMOND JOHN

Co-founder of clothing and shoe manufacturer FUBU, marketing consulting company Shark Branding. The company has had deals with Macy's Inc., J.C. Penney Co. and the NBA.

KEVIN O'LEARY

Venture capitalist, owns companies including lender IOU Central and mutual funds.