Ferres returned to action for the first time since July in his side’s last-minute defeat to Leeds on Friday evening.
Anderson feels that the England man’s influence will be crucial heading into knock-out football.
“Brett got through the Leeds game well, which we’re all very pleased about,” Anderson told the Huddersfield Examiner.
“And I thought he grew into the game the longer it went on.
“He looked to hit a spell after about 20 minutes where you could tell that he hadn’t played for a couple of months.
“But he got through that and will be a lot better for it when we go to Wigan on Thursday night, which is what we wanted.
“Brett’s a very important player for us, and it’s games like the one on Thursday when you look to your senior players to take the lead.
“Brett’s clearly one of those senior players, so it’s good to have him fit and available in time for the semi-final.”