Who are Alex and RJ?

Alex Trebek (1940–2020) was a Canadian-American television personality and game show host who was best known as the long-time host of the American game show Jeopardy!. Trebek hosted Jeopardy! from its revival in 1984 until his death from pancreatic cancer in 2020. He was known for his signature catchphrase, "Jeopardy!"

Rhonda "R. J." Jeopardy!" is an American game show that premiered on March 30, 1984. It is hosted by Alex Trebek and is one of the most popular and long-running game shows in American history. The show features contestants answering trivia questions in a variety of categories.