Tobias Jens Forge is a Swedish musician. He is the frontman, leader, primary songwriter, and sole continuous member of the masked rock band Ghost, performing live as their vocalist under the stage name Papa Perpetua/Papa Emeritus V. Although the band was formed in 2006, Forge's identity as the Ghost frontman was only confirmed in 2017, following a lawsuit by former band members due to a royalty dispute. Prior to finding success, he was in several other bands, including Repugnant and Crashdïet, under the stage name Mary Goore.