NFL quarterback Aaron Rodgers and newsman Bill Whitaker will also take turns.
A memorial video to the late host caps the last episode he taped before passing.
Ken Jennings has become embroiled in the infamous "Bean Dad" Twitter drama, leading to LeVar Burton being touted as the next "Jeopardy!" host.
John Roderick's Twitter thread about his nine-year-old daughter trying to open a tin of beans went viral on Sunday.
"Jeopardy!" will be hosted by a series of interim guest hosts following the death of long-time host Alex Trebek, the first of which has been announced.
Jennings is the current favorite among bookmakers. As the highest-earning game show contestant of all time, Sports Betting predicts Jennings will be next to stand behind the famous podium.
He's taking on an entirely new role.
A state senate resolution passed Tuesday in Washington congratulated Jeopardy! champ Ken Jennings for his accomplishments on the show.
Who took it all Tuesday night?
'Jeopardy!' fans have become suspicious that the Twitter accounts of 'The Goldbergs' and 'Schooled' may have revealed 'The Greatest of All Time' tournament winner.
Did Brad Rutter finally break his two-game losing streak?
The banter and wit were thick on the ground—but for one contestant, answers were rather hard to come by.
In a best-of-seven match, James Holzhauer, Ken Jennings and Brad Rutter will compete in Jeopardy! The Greatest Of All Time. The winner will take home $1 million in prize money.
Ken Jennings became a household name in 2004 after winning 74 consecutive games—the longest winning streak in the show's history.
The competition was fast and furious for the first round in the 'Jeopardy!: The Greatest of All Time Tournament.'
Brad Rutter has won the most money of any "Jeopardy!" contestant. He will face off against Ken Jennings and James Holzhauer in the quiz show's "Greatest of All Time" tournament.
"I have a pretend buzzer that I play along with, and I watch Alex every night," Ken Jennings said in an interview.
The competition kicks off on Tuesday.
James Holzhauer's 32-game winning streak ended on "Jeopardy!" on Monday night, but he'll still go down in the game show's Hall of Fame.
Within 27 games, Holzhauer has amassed more than $2 million.
Holzhauer has won 22 consecutive games since first appearing on "Jeopardy!" in April.
For the last 22 games of "Jeopardy," James Holzhauer has dominated the game.
"I hold myself to an especially high standard of honor, and it disgusts me when people try to cheat at games."
"Jeopardy" host Alex Trebek, who has been publicly facing stage 4 pancreatic cancer since March, has stated that he intends to return for the show's 36th season.
Holzhauer first made headlines April 9 after shattering Roger Craig's single-game winnings record of $77,000, taking more than $110,000.
James Holzauer, who took home nearly $111,000, broke the previous record for single-game winnings, $77,000, that was set in 2010.