'Shark Tank' vs. 'Quit Your Day Job' cast: Mark Cuban net worth vs. Randi Zuckerberg net worth and more

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Mark Cuban on His 'Shark Tank' Investments

While "Shark Tank" on ABC has inspired audiences for seven seasons, Oxygen's new show "Quit Your Day Job" is looking to rival the business-themed show.

"Shark Tank," a two-time Emmy Award winner, features a panel of self-made business moguls who look to invest in new businesses and products throughout the U.S., helping new business owners make the deal of a lifetime. "Quit Your Day Job" follows a similar premise and gives millennial entrepreneurs the chance to pitch their ideas to business experts looking for the next big thing.

Here's a look at the sharks and investors behind these two shows.

READ: The Best Shark Tank Ideas of All Time

'Shark Tank' Cast

Mark Cuban

Though he's introduced on "Shark Tank" as the outspoken owner of the Dallas Mavericks, Mark Cuban didn't make his fortune in sports. Cuban started as an entrepreneur at the ripe age of 12, when he went door to door selling garbage bags.

His first major business success was when he started MicroSolutions, a company that resold computer software. The company grew until he sold it in 1995 to CompuServe for a cool $6 million.

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Soon after, he started another company, Audionet, later named Broadcast.com. The company combined his love for college basketball and webcasting. Four years later, he sold that company to Yahoo for $5.7 billion in stock.

Proving his business smarts, Cuban sold all of his Yahoo stock before the dot com bubble burst. The move secured him $2.5 billion in cash, and the move turned out to be a brilliant one; Yahoo's stock dropped by 95 percent a year and a half after he sold it.

The Pittsburgh native is known for his philanthropy, especially for his work with the Fallen Patriot Fund of The Mark Cuban Foundation, which supports families of U.S. military personnel who were killed or seriously injured during Operation Iraqi Freedom.

In addition to owning the Dallas Mavericks, the business mogul also owns Magnolia Pictures and Landmark Theaters, and serves as chairman of HDNet. Mark Cuban's net worth is $2.7 billion.

Click through for 10 of Cuban's best inspirational quotes:

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Mark Cuban business quotes
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'Shark Tank' vs. 'Quit Your Day Job' cast: Mark Cuban net worth vs. Randi Zuckerberg net worth and more

#1: "I still work hard to know my business. I'm continuously looking for ways to improve all my companies, and I'm always selling. Always."

Credit: Getty

#2: "When you've got 10,000 people trying to do the same thing, why would you want to be number 10,001?"

Credit: Getty

#3: "Because if you're prepared and you know what it takes, it's not a risk. You just have to figure out how to get there. There is always a way to get there."

Credit: Getty

#4: "Go out there and get rich. Get so obnoxiously rich that when that tax bill comes, your first thought will be to choke on how big a check you have to write."

Credit: Getty

#5: "​In the past, people used to tell me to shut up a bit. But what I believe is to put out your opinion and let everyone else react. If I'm wrong, I'm wrong."

Credit: Getty

#6: "I've learned that it doesn't matter how many times you failed. You only have to be right once. I tried to sell powdered milk. I was an idiot lots of times, and I learned from them all."

Credit: Getty

#7: "Work like there is someone working 24 hours a day to take it all away from you."

Credit: Getty

#8: "Forget about finding your passion. Instead, focus on finding big problems."

Credit: Getty

#9: "It's not about money or connections -- it's the willingness to outwork and outlearn everyone when it comes to your business. And if it fails, you learn from what happened and do a better job next time."

Credit: Getty

#10: "What I've learned is that if you really want to be successful at something, you'll find that you put the time in. You won't just ask somebody if it's a good idea, you'll go figure out if it's a good idea."

Credit: Getty

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Kevin O'Leary

Anyone who has watched an episode of Shark Tank knows that Kevin O'Leary's nickname "Mr. Wonderful" is sarcastic. O'Leary is known as the blunt and ruthless investor who sometimes calls show guests cockroaches.

O'Leary's success started where many others' does — in a basement. With a $10,000 investment from his mother, O'Leary started SoftKey International in 1986, a company that published and distributed CD-ROM-based computer software. By 1999, Softkey had become The Learning Company and was bought by Mattel for $4 billion at the height of the tech bubble.

In 2003, O'Leary became a co-investor and director of Storage Now, a climate-controlled storage facility developer, which was later acquired for $110 million. Through his numerous business ventures, Kevin O'Leary's net worth has grown to $400 million.

EXPORE MORE: Thirteen Million Dollar Businesses That Turned Down Shark Tank Deals

Robert Herjavec

Robert Herjavec and Kevin O'Leary often seem like polar opposites during episodes of "Shark Tank," spending plenty of time disagreeing over the merits and money-making potential of businesses brought to the "Shark Tank" table. While O'Leary is known for intimidating hopeful entrepreneurs, Herjavec is more likely to encourage them, even if he has no interest in investing in their business.

Perhaps it's Herjavec's own rags to riches story that makes him more compassionate to those trying to make it big in the business world. Herjavec, the son of Croatian immigrants who moved to Canada when he was three, saw his mother lose the family savings after getting swindled by a vacuum salesman.

Herjavec spent the early 1990s waiting tables before realizing the key to making big money at the time was grabbing hold of the dot com business. He soon launched his first technology company, called BRAK Systems, which is now reportedly worth $100 million. He also helped broker the sale of another technology company to Nokia for $225 million.

The businessman now oversees The Herjavec Group, which is a leading IT security and infrastructure integration firm. Robert Herjavec's net worth is $200 million.

Lori Greiner

For "Shark Tank" cast member Lori Greiner, her entrance into the business world started with an invention: the earring organizer. While working in consumer products, Greiner invented the plastic organizer, which could hold up to 100 earrings. The product sold out instantly on the Home Shopping Network and made $1 million within its first year.

Greiner has gone on to invent more than 400 products and holds 120 U.S. and international patents. For the last 16 years, Greiner has also hosted "Clever and Unique Creations by Lori Greiner" on QVC-TV. Lori Greiner's net worth is $50 million.

'Quit Your Day Job' Cast

Randi Zuckerberg

Randi Zuckerberg first found business success as one of the first people hired to work at Facebook — which was created by her younger brother, Mark. As the lesser-known Zuckerberg, Randi has made a new name for herself, leaving Facebook, where she worked as the director of marketing since 2011.

Randi Zuckerberg is founder and CEO of Zuckerberg Media, a media and production company. She has produced content for PayPal, the Clinton Global Initiative, Cirque du Soleil, the United Nations and Bravo. She is also the editor in chief of Dot Complicated and a New York Times best-selling author.

Randi Zuckerberg's net worth is estimated at $100 million.

Lauren Maillian

Model-turned entrepreneur Lauren Maillian joins the cast of "Quit Your Day Job." Maillian's business success started when she was just 19 years old. In 2007, she co-founded the boutique winery Sugarleaf Vineyards, which grew into an international, award-winning wine brand, cementing her place as the youngest self-made winery owner in the U.S.

Maillian served as the company's COO until its acquisition in 2012. By that time, she had also started Gen Y Capital Partners, a venture firm involved in mobile and consumer-facing technology-enabled companies. She is also the founder and CEO of LMB Group, a strategic marketing and advisory company.

Maillian's success has also translated to books. Her business memoir, "The Path Redefined: Getting To the Top On Your Own Terms," is a bestseller. Lauren Maillian's net worth is not currently known.

Ido Leffler

Ido Leffler is not just known as a successful businessman but as one who is committed to helping those in need through his businesses.

Leffler is co-founder and CEO of Yoobi, a school supply company that aims to keep children engaged through bright colors and fun designs. For every item purchased, Yoobi donates an item to a U.S. classroom in need. Yoobi, launched in 2014, donated free school supplies to more than 1.2 million children in need in its first 18 months of operation.

Hunger is another social issue that Leffler combats. His company Cheeky produces colorful tableware that's sold at Target stores. During its first year of operation, Cheeky donated more than 4 million meals to those in need in the U.S.

Leffler is also co-founder of Yes To, Inc., started in 2006. A natural beauty brand, Yes To products include Yes to Carrots, Yes to Cucumbers and Yes to Tomatoes. The company is a leading beauty brand and can be found in more than 28,000 stores worldwide. Ido Leffler's net worth is not currently known.

Sarah Prevette

Last but certainly not least is "Quit Your Day Job" investor Sarah Prevette. Prevette worked in product development and marketing for a software company before launching Sprouter, which was one of the world's first online communities that provided advice to startups in real time.

After that company was acquired in 2011, Prevette went on to build BetaKit, which grew into a popular site for technology news. Keeping her eye on the startup world, Prevette later co-founded BrandProject, which actively invests in startups in their early stages.

Prevette is also a vocal advocate for youth entrepreneurship. She founded the Future Design School (FDS) to train teachers and create innovative curriculum for schools that encourage their students to become entrepreneurs.

Her success has not gone unnoticed; Prevette has been named one of the top entrepreneurs in North America by Inc. Magazine, as well a "Top 20 Power Elite" by Canadian Business. Sarah Prevette's net worth is not currently known.

RELATED: View photos of Shark Daymond John

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Shark Tank, Daymond John
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'Shark Tank' vs. 'Quit Your Day Job' cast: Mark Cuban net worth vs. Randi Zuckerberg net worth and more
PASADENA, CA - JANUARY 10: Daymond John of 'Shark Tank' speaks onstage during the ABC portion of the 2013 Winter TCA Tour at Langham Hotel on January 10, 2013 in Pasadena, California. (Photo by Frederick M. Brown/Getty Images)
PASADENA, CA - JANUARY 10: (L-R) Hosts Robert Herjavec, Lori Greiner, Daymond John, Kevin O'Leary and Executive Producer Clay Newbill of 'Shark Tank' speak onstage during the ABC portion of the 2013 Winter TCA Tour at Langham Hotel on January 10, 2013 in Pasadena, California. (Photo by Frederick M. Brown/Getty Images)
PASADENA, CA - JANUARY 10: (L-R) Hosts Robert Herjavec, Lori Greiner and Daymond John of 'Shark Tank' speak onstage during the ABC portion of the 2013 Winter TCA Tour at Langham Hotel on January 10, 2013 in Pasadena, California. (Photo by Frederick M. Brown/Getty Images)
LOS ANGELES, CA - NOVEMBER 23: Businessmen/'Shark Tank' cast members Mark Cuban, Daymond John, Robert Herjavec, and Kevin O'Leary speak onstage at the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
MIAMI BEACH, FL - JANUARY 20: Daymond John attends NATPE Reality: Case Study: SHARK TANK at NATPE 2015 at Fontainebleau Miami Beach on January 20, 2015 in Miami Beach, Florida. (Photo by Aaron Davidson/Getty Images)
Daymond John, second right, of Shark Tank and FUBU, joins Bill and Tani Austin, founders of the Starkey Hearing Foundation, as they fit Jayden Orlang, 10, of New York, with free hearing aids at the Foundation's hearing mission, Saturday, Feb. 1, 2014, at Yankee Stadium in New York.(Photo by Diane Bondareff/Invision for Starkey Hearing Foundation/AP Images)
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This article originally appeared on GOBankingRates.com: 'Shark Tank' vs. 'Quit Your Day Job' Cast: Mark Cuban Net Worth vs. Randi Zuckerberg Net Worth and More

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