Police said Bradley Johnston was at a nightclub last weekend when an altercation began.
Johnston ended up fighting inside and later outside the club with the five men now charged with his death.
Woolnough, 24, was stopped in 11 rounds by Froch in a gutsy Commonwealth title challenge last June in Nottingham, then lost his Canadian super-middleweight title to Otis Grant in September.
He was released on $10,000 bail after a hearing on Thursday.
Eyes down, he said nothing during the hearing.
