Toby Ezeonu returned in the third set after sustaining an injury during the conference semifinals.
O'Boyle is the sixth transfer to commit to Penn State since head coach Mike Rhoades took over the program.
Booth, the son of Penn State hoops legend Calvin Booth, boasted a four-star status as a recruit and will take his talents to South Bend.
"We want to be true to ourselves, first and foremost, and not change a whole lot from the regular season."
Bouquot will arrive in Happy Valley with one year of eligibility remaining.
In his three years of high school wrestling, Weiss recorded a 102-11 record.