[3] Prior to being drafted by the IceDogs, their head scout John Neville described him as a mix of Alex Friesen and Nazem Kadri.

"[19] Prior to the 2018–19 season, Thomas was again named an alternate captain for the IceDogs and was invited to the Los Angeles Kings development camp.

[22] As a result of his overall playmaking ability and skill, the Kings signed Thomas to a three-year, entry-level contract on March 16, 2019.

[28] On October 19, he was named to 2019 CIBC Canada/Russia Series alongside teammate Philip Tomasino[29] and he recorded a goal in their first game against Russia.

[30] After returning from the 2020 IIHF World Junior Championship on January 9, 2020, Thomas was traded to the Peterborough Petes in exchange for Cameron Butler and four draft picks.

[32] On September 22, 2020, Thomas was loaned to Eisbären Berlin of the DEL due to the delayed start of the 2020–21 North American season.

On January 11, 2021, Thomas was one of 14 players reassigned to their American Hockey League (AHL) affiliate, the Ontario Reign.

[45] Prior to being called up to the NHL level, Thomas was recognized as the AHL Player of the Week for tallying four goals and two assists over three games.

[51] After the IceDogs were eliminated from the playoffs, Thomas was selected to play for Team Canada at the 2018 IIHF World U18 Championships.

[53] On December 21, Thomas was named to Team Canada's roster for the 2020 World Junior Ice Hockey Championships.

[58] His uncle Leo Thomas also played minor hockey, including some years with the Mississippi RiverKings and Fort Wayne Komets.

[53][61] Thomas was born in Toronto; however, his family regularly moved around due to his dad's minor hockey career.

[1][62] After his father retired from hockey the family decided to stay in Orlando, Florida, which Thomas lists as his hometown.

[10] While playing with the Toronto Marlboros, Thomas made a cameo appearance in the film Soul On Ice: Past, Present & Future, which discusses the history of black players in hockey.

[63] Thomas also runs a clothing company called Zale Apparel with his friend Ethan Low which embraces his Barbadian heritage.