Striker Helder has missed three matches with a hamstring problem and Anthony returns after a picking up a knee injury against Portsmouth.
Darren Anderton, who played 30 minutes as a substitute against Leicester City last time out after three weeks out with an ankle problem, makes the trip after recovering from a bout of illness this week.
On the down side, Simon Davies and Fredi Kanoute miss out with shin and hamstring problems respectively.
"Fredi has the slightest of hamstring strains," reported acting boss David Pleat this afternoon.
"Simon got through the last game against Leicester City but is not fit enough at the moment and is due for a scan on the sore part of his lower shin.
"Anthony is back in the squad, Darren has been under the weather for the last few days but is also in the squad and Helder has looked bright again in training."
Helder Postiga and Anthony Gardner are back in the squad for tomorrow night's Premiership clash at Middlesbrough.