Moltzen and Koroibete mingled with fans, signing autographs and posing for photos.
Injured fullback Moltzen told Wests Tigers TV he was hopeful the local community would be out in force to cheer the team to victory against the Raiders.
"Campbelltown is a massive part of the Wests Tigers club," said Moltzen.
"It's good to get out here and mingle with fans at Macarthur Square.
"The crowd's a massive part of games these days. Especially when we come to Campbelltown, it's a great crowd to be around."