Leroy Jethro Gibbs is a renowned fictional character and the leading figure in the CBS TV series NCIS, portrayed by Mark Harmon. A former U.S. Marine Corps Scout Sniper turned special agent, Gibbs commands a team for the Naval Criminal Investigative Service. Known for his exceptional marksmanship and adeptness at handling violent standoffs, Gibbs relies heavily on his team for technical forensics and background checks. A patient yet firm leader, he has little tolerance for bureaucracy. Throughout the series, Gibbs has led various main characters, including Timothy McGee, Nick Torres, Caitlin Todd, Anthony DiNozzo, Ziva David, Alexandra Quinn, Clayton Reeves, Ellie Bishop, and Jacqueline Sloane. In 2021, Gibbs leaves NCIS in pursuit of adventure, marking a significant turning point in the series. Austin Stowell has since taken on the role of a younger Gibbs in the prequel series NCIS: Origins. Gibbs' casting initially raised doubts, but Mark Harmon's portrayal won over the creators, who praised his fit for the character. The character's backstory, upbringing, and personal tragedies have been unveiled over the course of the show, adding depth to his persona and relationships with his team. Gibbs's father, Jackson Gibbs, played a significant role in shaping his son's character and interests, providing insight into his upbringing and motivations. Leroy Jethro Gibbs is a beloved and iconic character whose legacy continues to resonate with fans, making an indelible mark

Leroy Arthur Petry, born on July 29, 1979, is a retired United States Army soldier who received the U.S. military's highest decoration, the Medal of Honor, for his heroic actions in Afghanistan during Operation Enduring Freedom in 2008. Hailing from Santa Fe, New Mexico, Petry joined the Army after high school and completed the Ranger Indoctrination Program. Throughout his military career, he served in various positions and completed a total of eight deployments, spending 28 months deployed in Iraq and Afghanistan. On May 26, 2008, during his seventh deployment, Petry displayed extraordinary bravery when he continued to fight and protect his fellow soldiers despite being wounded in both legs by gunfire. He ultimately saved the lives of two soldiers by grabbing a grenade and attempting to throw it away from them, resulting in the loss of his right hand. Despite his injury, Petry chose to reenlist and remained on active duty until his retirement in 2014. Petry's selfless and courageous actions earned him the Medal of Honor, making him a symbol of bravery and heroism. His legacy continues to inspire and serve as a testament to the sacrifices made by the men and women in the U.S. military.

Leroy "Lee" Cronin is the Regius Chair of Chemistry at the University of Glasgow, holding prestigious fellowships from the Royal Society of Edinburgh and the Royal Society of Chemistry. With a BSc and PhD from the University of York, Cronin has held various academic positions before his current role, including a Leverhulme fellowship at the University of Edinburgh and a research fellowship at the University of Bielefeld. Renowned for his innovative work, Cronin has designed robots using 3D printed architectures to explore new chemicals, leading to the development of a programming language for chemistry called XDL. Additionally, he introduced the concept of assembly theory to quantify the complexity of molecules. Cronin's significant contributions have earned him numerous accolades, including the Philip Leverhulme Prize, Royal Society of Chemistry Corday–Morgan medal, and recognition as one of the UK's top 10 Inspiring Scientists and Engineers. Despite a temporary suspension by the Royal Society of Chemistry, Cronin's pioneering work continues to make a profound impact in the field of chemistry.

LeRoy Wilton Homer Jr. was the First Officer of United Airlines Flight 93, tragically hijacked as part of the September 11 attacks in 2001, and crashed into a field near Shanksville, Pennsylvania. Homer's passion for aviation began in his early years, as he built model airplanes, collected aviation memorabilia, and read extensively on the subject. He embarked on his flying career at a young age and was known for his dedication and achievements. After serving in the United States Air Force, including during the Gulf War, he continued his flying career as a First Officer at United Airlines. Tragically, he lost his life while bravely combating the hijackers on September 11, 2001. Homer has been honored posthumously with numerous awards and citations, and his legacy is celebrated through the LeRoy W. Homer Jr. Foundation, established by his widow, Melodie Homer. He is remembered as an exemplary figure, with the United States Air Force Academy's graduating class of 2024 naming him as their class Exemplar. His memory lives on through the scholarships and initiatives supported by the foundation and his memorialization at the National 9/11 Memorial.

Leroy Anderson ( lə-ROY) (June 29, 1908 – May 18, 1975) was an American composer celebrated for his short, light concert pieces, many of which gained prominence through the Boston Pops Orchestra under the baton of Arthur Fiedler. John Williams hailed him as "one of the great American masters of light orchestral music." Born in Cambridge, Massachusetts, to Swedish parents, Anderson received his early piano lessons from his mother, a church organist, and went on to study music at the New England Conservatory of Music and Harvard College. He further honed his musical skills at Harvard University Graduate School, where he obtained a Master of Arts in Music in 1930. Anderson's remarkable career included serving in the United States Army during World War II and the Korean War, during which he continued composing and achieved commercial success with hit recordings like "Blue Tango" and "Sleigh Ride." His compositions, including "The Typewriter," "Bugler's Holiday," and "A Trumpeter's Lullaby," continue to be performed by orchestras and bands worldwide. Anderson's enduring legacy as a prolific composer and his innovative use of creative instrumental effects have left an indelible mark on the world of orchestral music.