An American musician, bass player with Love.

Born in Cleveland, Ohio, his family moved to Sarasota, Florida when he was about 9 years old. He began to play bass with a number of local bands, but then won a scholarship to art college in Los Angeles in 1964. Here he developed his bass-playing technique and joined The Surfaris.

He found a roommate, Alban 'Snoopy' Pfisterer, who was also a student there. In 1965 he met Arthur Lee, who then had a band called The Grass Roots (later to become Love). Lee hired Forssi as bassist just after the recording sessions for the first album commenced as a replacement for Johnny Fleckenstein. Snoopy Pfisterer could also be found with the group as an occasional substitute drummer.

After the breakup of Love, Forssi got studio session work and offers to join various other rock groups. He played briefly with a band called The Elves Themselves and worked on a record with Jimi Hendrix, but never again reached any level of fame.

After the original members of Love scattered, he moved back to Sarasota in the early 1970s, where he found fewer and fewer opportunities to use his musical talents. He mostly worked at various odd jobs over the years, his employment usually hampered by long-term substance-abuse problems which seem to have started during the years of fame.

In the early 1990s, he moved to the little town of Greenville in north Florida, where his mother then lived. He died in nearby Tallahassee in January 1998 from a brain tumour.