Williams was released from his signing with Iowa State on December 9.
Ioane secured his first All-Big Ten First Team selection in 2025.
Wheatley has started every game at safety for the past two seasons.
Zane Durant became Penn State's first player to opt out of the Pinstripe Bowl on Monday.
It was one of those days for Mike Rhoades and Co.
"It's a dream come true for me. It's one of the greatest honors of my life, and I couldn't be more grateful to be here."