The 28-year-old has scored nine goals for the Championship side.
The 28-year-old has recovered from a slow start to his loan spell at Hillsborough - where he failed to score in his first seven games after joining from Norwich City - and has put together a blistering run of form recently. And Anderson suggested that a player of his quality will prove invaluable if Carlos Carvalhal's side hope to book a place in the Premier League for next season.
"If your going to go up then you need that player who will get you 20 plus goals and Gary is one of those," he told the Star.
"Although it didn't work out for him at Norwich, sometimes it just doesn't fit for the player, he's come to Wednesday and done a great job in the short space of time he's been there and I think that could be the turning point.
"To get out of that league you need people like that."
After a lacklustre start to life in South Yorkshire, Hooper has scored nine goals in his last 10 appearances. And it was midway through his recent run that the Owls decided to sign the forward permanently.
And he justified the faith shown in him by Carvalhal by scoring the two goals that helped Wednesday come from behind to clinch a vitally important win over Birmingham City on Saturday.
The pair went into the clash at St Andrew's just outside the play-off places, and it appeared that with 15 minutes to go, it would be Gary Rowett's side that would move into the top six as Clayton Donaldson's goal had given the Blues the lead.
However, it was Hooper that turned the game on its head, scoring twice in three minutes to ensure that it was Wednesday who moved into the play-off places. And Anderson seems to think that it will be Hooper that will keep them there.