Who filled in as host in Wheel of Fortune?

Alex Trebek was host on 1 Apr 1997 when he and Pat Sajak switched hosting positions as an April Fool's Day event. Then Pat Sajak's wife Leslie Brown Sajak filled is as filled in as the letter turner while Pat Sajak and Vanna White were contestants solving puzzles. Pat and Vanna combined their winnings, played the bonus round together won an additional 25,000 dollars when they solved it and each donated over 25,000 dollars to their favorite charities