His final appearance aired last Friday, January 8, with NBC quick to lock-in the show's replacement hosts to ensure the game show can continue.
In a statement, producer Mike Richards said: "Alex was a legend, revered by all of us".
Whitaker, a "60 Minutes" correspondent, will also be a guest host.
Naomi Osaka Becomes Louis Vuitton Ambassador Do I call this a full circle moment? "She stays true to herself and doesn't compromise on her values". Osaka had a hilarious reply and wrote, " If she wants me to move in she should just say that ".
The show will make a donation to the guest hosts' charity of choice that matches the total dollar amount won by contestants during their run.
"I want to thank our guest hosts, who will not only help all of us celebrate his great legacy, but also bring their own touch to the show".