Thomas started his career in 1988 with the Swedish band Talk of the town as an 18 year old. They had a huge hit in Sweden with a song called “Free like an eagle” and their record reached Gold status. After that Thomas played the main character in the opera Adventures of Hoffman in the Swedish Folkoperan. Later he moved on to record an album with the flagship of doom metal – Candlemass. He recorded the album “Chapter VI” with them. Shortly after, he recorded a solo album, which was released on Virgin Records. He recorded three albums with Nikolo Kotzev’s Brazen Abbot. During that period he participated  in the musical “Miss Saigon” in Stockholm for two years. He later moved on to participate in more musicals such as “The Full Monty”, “Memories from Sarajevo”, and most recently “Rock Of Ages”, which went on for almost two years. From 2007 he is a steady member of the Symphonic metal band Therion, making records and touring the world with them. Beside all of this he has done backing vocals for plenty of other artists. He’s also done Theme songs and voice dubbings for Disney Channel and a lot more.