McGugan has not been given many first-team minutes this season, and has not made an appearance since the middle of August, but Carvalhal intends to use him against the Magpies.
The Portuguese boss says that the attacking midfielder still has an important role to play for the team, and confirmed that he was a player he pushed the club to bring to Hillsborough over the summer.
“I like the way that he plays," Carvalhal said. "I have some expectations to see him play. I pushed him a lot to come to the club.
“Lewis didn’t play in the last couple of matches but he’s still a very talented player. He will play tomorrow. I want to see him play nice football.”
McGugan was one of Wednesday's star players last season, but he has been forced out of contention by the form of others this time around.
The likes of Barry Bannan, Sam Hutchinson and Kieran Lee all seem to be ahead of him in the pecking order for places at the moment, and McGugan faces a fight to win his spot in the team back.
A good performance against Premier League opponents in the form of Newcastle would be an ideal way to stake his claim.
Steve McClaren's men have made a poor start to their 2015/16 campaign, but they still have a lot of quality and Wednesday will need to be on the top of their game if they are to cause an upset at St. James' Park tomorrow.