Callum Keith Rennie is a British born Canadian actor, known for his diverse and compelling performances across film and television. His breakthrough role was as punk rocker Billy Tallent in the music mockumentary Hard Core Logo (1996), which established him as a versatile actor. Rennie's notable television roles include Leoben Conoy / Number 2 on Battlestar Galactica, Lew Ashby on Californication, and Karl Malus on Jessica Jones, showcasing his range and talent. He has received critical acclaim for his performances, winning a Genie Award for Best Actor in a Supporting Role for his work in the film Last Night (1998) and a Gemini Award for Best Actor in a Continuing Leading Dramatic Role for his portrayal of Detective Ben Sullivan on Shattered. Rennie's career has also seen him in recurring roles on popular series such as The Killing, The Man in the High Castle, and Star Trek: Discovery, further solidifying his status as a respected actor in the industry. His dedication to his craft and ability to bring depth to his characters have earned him multiple awards, including four Leo Awards. Rennie's talent and versatility continue to captivate audiences, making him a prominent figure in the entertainment world.

Callum William McGregor, born on 14 June 1993, is a Scottish professional footballer who plays as a midfielder and captains the Scottish Premiership club Celtic. McGregor, a product of Celtic's youth system, has been with the club for his entire professional career, except for a single season on loan at Notts County in 2013–14. He has represented Scotland at various youth levels and made his senior debut in 2017, featuring in UEFA Euro 2020 and UEFA Euro 2024, amassing 63 caps before retiring from national team duty in 2024.McGregor's career with Celtic began with notable achievements in the youth system, including a hat-trick in the 2012 Scottish Youth Cup Final victory over Queen of the South. His loan spell at Notts County saw him excel, becoming the top goalscorer for the club and earning praise for his contribution to the team. Upon his return to Celtic, McGregor continued to make significant strides, scoring crucial goals in various competitions and playing a key role in the team's victories.His noteworthy performances and dedication to the sport have earned him respect and recognition in the football community, establishing himself as a prominent figure in Scottish football. McGregor's journey exemplifies his talent, commitment, and impact on the pitch, making him a revered figure in the world of football.

Callum Thomas Owen Paterson, born on 13 October 1994, is a versatile professional footballer currently playing for EFL Championship club Sheffield Wednesday. Paterson's career began at Heart of Midlothian, where he played a vital role in their promotion to the Scottish Premiership in 2015. He later moved to Cardiff City and was instrumental in their promotion to the Premier League in 2018. Known for his work rate, pace, aerial ability, and goalscoring prowess, Paterson has showcased his versatility by playing as a right-back, midfielder, and striker for various clubs. His international career includes 17 appearances for the Scotland national team.Paterson's multicultural background is reflected in his family heritage, with a Scottish father, a Zimbabwean mother, and a South African maternal grandfather. Raised in South Queensferry, Scotland, he attended Queensferry High School and is the cousin of fellow footballer Michael Travis.Throughout his club career, Paterson has demonstrated his skill and adaptability, earning accolades such as the Young Player of the Year award at Hearts and Cardiff City. His journey continues at Sheffield Wednesday, where he looks to make a significant impact in the EFL Championship.

Callum Mills, born on April 2, 1997, is a prominent Australian rules footballer and the current captain of the Sydney Swans in the Australian Football League (AFL). Hailing from Sydney, Mills' passion for the sport was ignited at a young age, and he quickly made a name for himself through his exceptional talent. He achieved the 2016 NAB AFL Rising Star Award, solidifying his status as a standout player in the league. Mills' dedication and prowess on the field led to his appointment as a co-captain in 2022, and subsequently as the sole captain in 2024. His remarkable journey from a young Sydney Swans supporter to a celebrated leader within the club reflects his unwavering commitment to Australian rules football. With an impressive list of accolades and achievements, including being part of the All-Australian team and receiving the Bob Skilton Medal, Mills continues to leave a lasting impact in the AFL. His exemplary skills and leadership qualities have cemented his legacy as a revered figure in the realm of Australian rules football.

Callum Roddie Elder, born on January 27, 1995, is a renowned Australian professional football player excelling as a left back for EFL Championship club Derby County and the Australia national team. Elder's journey into professional football began at Leicester City, where he embarked on loan spells at various clubs before joining Hull City in August 2019. After spending four successful years there, Elder signed with Derby County in June 2023. Notably, his impressive performances contributed to Derby's promotion to the Championship. Elder's international eligibility spans Australia, Scotland, Ireland, and England, and he has made significant contributions to Australia's U20 team. With a versatile skill set and a promising career trajectory, Callum Roddie Elder continues to make an impact in the football world.