Lucius Cassius Dio, also known as Dio Cassius, was a Roman historian of maternal Greek origin. He is renowned for publishing 80 volumes of the history of ancient Rome, covering the period from the arrival of Aeneas in Italy to 229 AD, during the reign of Severus Alexander. Written in Ancient Greek over 22 years, Dio's work spans approximately 1,000 years of history, providing valuable insights into the formation of the Republic, the creation of the Empire, and significant events such as the British revolt of 60–61 AD. Despite initial criticisms of his work as unreliable, modern scholars have recognized the complexity and sophisticated historical interpretations within Dio's writings. His Roman History has been preserved through surviving books, fragments, and collections, shedding light on pivotal periods such as the Early Republic and Regal era. Dio's enduring contribution to historical literature continues to be studied and appreciated for its comprehensive coverage of ancient Roman history.

Cassius Winston is an American professional basketball player currently competing for Pallacanestro Reggiana in the Italian Lega Basket Serie A (LBA). He rose to prominence as a standout point guard at University of Detroit Jesuit High School, leading his team to an MHSAA Class A State Championship and earning the title of Mr. Basketball of Michigan in 2016. Winston continued his basketball career at Michigan State, where he made significant contributions, including leading the Spartans to a Big Ten men's basketball tournament championship and earning the title of Big Ten Player of the Year in 2019. Additionally, he was recognized as a preseason All-American by the Associated Press. In his professional career, Winston has played for the Washington Wizards, Bayern Munich, and Tofaş, before joining Pallacanestro Reggiana. He has also experienced personal tragedy, losing his younger brother Zachary to an apparent suicide in 2019. Despite the devastating loss, Winston exhibited incredible strength by playing in a game the day after his brother's passing and receiving a heartwarming standing ovation from the home crowd.

Cassius Marcellus Coolidge, also known as "Cash" or "Kash," was an American artist renowned for his iconic series of paintings titled Dogs Playing Poker. Born in Antwerp, New York, on September 18, 1844, Coolidge had little formal training as an artist. His diverse career included roles as a druggist, sign painter, bank founder, and newspaper creator before he found his passion for painting dogs in human scenarios. Coolidge's unique creations included "comic foregrounds," novelty photographs that combined a portrait with a caricatured body. He gained widespread recognition for his series of sixteen oil paintings commissioned by the advertising firm Brown & Bigelow, featuring anthropomorphic dogs, notably the famous Dogs Playing Poker. Coolidge's legacy lives on through the replication of his dog paintings in various comic forms, and his artworks have set impressive auction records. He passed away on January 13, 1934, in Staten Island, New York, leaving behind a lasting imprint on the art world.

Cassius Clay Dowell (February 29, 1864 – February 4, 1940) was a prominent Republican U.S. Representative from Iowa, known for his extensive service from 1915 to 1935, and again from 1937 until his passing in 1940. Dowell's early education took place in Iowa, graduating from Baptist College, Simpson College, and Drake University. He then pursued a career in law and politics, serving in the Iowa State House of Representatives and the Iowa State Senate before being elected as a Republican to represent Iowa's 7th congressional district in 1914.Throughout his tenure, Dowell made significant contributions, serving as chairman of the Committee on Elections and on the Committee on Roads. Despite facing electoral challenges, he was known for his influence on legislation, particularly in securing veterans' hospitals and federal buildings for his district. Tragically, Dowell passed away due to heart disease in 1940, leaving behind a legacy of dedicated public service. His impact continued to be felt as his seat was filled by fellow Republicans, Robert K. Goodwin and Paul Cunningham. Dowell's commitment to his constituents and his contributions to legislation remain a testament to his enduring influence in Iowa politics.

Cassius F. Butts, born on July 10, 1971, is a prominent American business executive, two-time United States Presidential Appointee, author, and speaker. He was raised in Orlando by parents who were deeply involved in business and community service. Butts holds a Bachelor of Arts degree from Morehouse College, a Master of Public Administration degree from Clark Atlanta University, and a Grant Writing certificate from Emory University. He has actively contributed to various organizations, including the Atlanta Regional Commission, South Cobb Economic Development Advisory Council, and Leadership Atlanta. Butts has been appointed to several prestigious positions, such as serving on the Georgia Economic Development Board and the Biden-Harris Transition Team. Additionally, he has made significant contributions to the Morehouse College Department of Business & Economics and the Robinson College of Business at Georgia State University. His extensive career spans both the public and private sectors, where he has held leadership roles at the United States Small Business Administration (SBA) and as president & CEO of 1st Choice Credit Union. He is also the founder of Capital Fortitude Business Advisors, a management-consulting firm, and the author of the book "Exceptional: Being the Exception to the Rules". Butts is a dedicated advocate for small businesses, NGOs, and educational institutions, and his expertise has been widely recognized and sought after.