Name: Robert IgerCompany: Walt Disney Co. When he originally started: 2015When he originally left: 2020. However, he remained a chairman until 2021, when he left the company entirely. When he returned: 2022. Iger returned to focus on improving the streaming service, according to The Wall Street Journal.Name: Howard SchulzCompany: StarbucksWhen he originally started: Became CEO in 1987. When he originally left: 2000. Schultz departed his role and became global chief strategist and chairman to focus on international expansion, according to Starbucks.When he returned: 2008 and 2022. In 2008, he replaced Jim Donald as CEO after the company stock dropped 50% in one year. He was tasked with bringing the company to sustainable, profitable growth, according to Starbucks.However, Schultz stepped down for the second time in 2017. Then, he retired from the company and his chairman position in 2018. In April 2022, he was reinstated as interim CEO until the next CEO Laxman Narasimhan takes over in 2023. Name: Jack DorseyCompany: TwitterWhen he originally started: Cofounded the company in 2006.When he left: 2008. Dorsey was fired when the board of directors didn't agree with Dorsey's leadership style and gave the CEO role to cofounder Evan Williams, according to Fortune.When he returned: 2015. Dorsey replaced former CEO Dick Costolo when he stepped down from the role.In November 2021, Dorsey resigned from Twitter.Name: Michael DellCompany: Dell Inc.When he originally started: Founded the company in 1984. When he originally left: 2004. Dell transitioned to chairman and Kevin Rollins, the company's president, took over. The change in titles reflected the functions the men perform, the company told the New York Times. Additionally, he wanted to spend more time on his philanthropic work, according to Reuters. When he returned: 2007. Dell assumed his old role after his successor, Rollins, was fired. Dell then bought the company out in 2013. He's still serving as the CEO today. Name: Steve JobsCompany: AppleWhen he originally started: Cofounded the company in 1976. However, Michael Scott was hired as CEO in 1977. When he originally left: Jobs was fired in 1985 after a failed boardroom coup. He went on to launch the startup NeXT.When he returned: 1997. John Sculley was then replaced by Michael Spindler, who was later replaced by Gil Amelio. But in 1996, Apple acquired NeXT and brought Jobs back to Apple. He became CEO the following year and stayed in the role until he died of pancreatic cancer in 2011.