Sven Justus Fredrik Wollter is a Swedish actor.
Wollter has starred in many films such as The Man on the Roof, The Man from Majorca, Änglagård and Jerusalem, based on the novel by Selma Lagerlöf. For his roles in The Man from Majorca and Sista leken he won the award for Best Actor at the 20th Guldbagge Awards.
He has been in TV series such as Natives of Hemsö based on the novel by August Strindberg and Raskens from 1976, based on the novel by Vilhelm Moberg, which helped launch Wollter's career. In later years he has played Van Veeteren in Håkan Nesser's thriller series. He has also been in many plays.
Wollter has starred briefly in Hollywood productions such as John McTiernan's The 13th Warrior in which he played a Viking chief.
Wollter has been active as an artist in the Swedish communist movement since his youth and is a longtime member of the Swedish Communist Party. His activities include Fria Proteatern and the successful Tältprojektet, The Tent Project, a musical theater performance on the history of the Swedish working class that toured the country the summer of 1977.