Marius Cassidy is a 23-year-old professional football player from NOR. He currently plays for Moss, wearing the number 13 shirt. He plays primarily as a Defender. His current market value is estimated at 200K €.

His most recent move was a Free from Frigg Oslo FK to Moss on 2024-08-15.

Throughout the Norwegian 1.Divisjon 2025, Marius Cassidy featured in 27 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.