Sheffield Wednesday: Owls complete signings of Wiggins and Sougou
Wiggins, 27, made 124 league appearances for the Addicks and has signed a three-year contract with the Championship side.
Senegal international Sougou, 30, spent last season on loan at Evian and has signed a two-year deal with the Owls.
Advertisement
Hide AdAdvertisement
Hide AdThe arrival of the duo has taken the number of pre-season recruits at Hillsborough to 11.
The pair could make their debut against Bristol City on Saturday.
Wiggins, a product of Crystal Palace’s youth set-up, played for Bournemouth before heading to Charlton.
The 27-year-old, a key member of the Addicks side who gained promotion to the Championship in 2012, has racked up 128 appearances for the London club but has slipped down in the pecking order under boss Guy Luzon.
Ex Marseille winger Sougou trained with his new Wednesday teammates for the first time on Tuesday.