However, only Scott's participation has been formally announced thus far by ABC, which will not comment or confirm casting reports prior to the official cast announcement on Good Morning America on Wednesday, September 6.
Corcoran, 68, has been a member of Shark Tank's investor panel since the ABC reality series premiered in 2009 and will be the second shark to compete on Dancing with the Stars. Robert Herjavec competed on Season 20 with professional partner Kym Johnson -- and the pair ended up dating and getting married last year.
Derek Fisher, 43, played 18 seasons in the NBA, spending most of his career with the Los Angeles Lakers prior to his retirement in 2014. Shortly afterward, he became the head coach of the New York Knicks, but was fired after one and a half seasons.
In June, he was arrested on suspicion of DUI in Los Angeles after flipping his car while driving on the freeway with his girlfriend, former Basketball Wives star Gloria Govan.
Arlen, 22, currently works as a TV personality for ESPN and won a gold medal and three silver medals at the 2012 Summer Paralympics in London.
After becoming completely vegetative and paralyzed as a child due to two rare autoimmune disorders, she began an unexpected recovery that still left her spending "10 years in a wheelchair paralyzed from the waist down." However, Arlen managed to begin walking again in 2015 and took her first step without any assistance in March 2016.
Jordan Fisher, 23, is a singer and actor who has appeared in Disney Channel's Teen Beach Movie franchise and Fox's Grease Live televised musical. He most recently performed in Broadway's Hamilton.
Muniz, 31, is best known for his roles on the Malcolm in the Middle TV series and Agent Cody Banks films as a child actor before he put his acting career on hold to pursue a career as a race-car driver.