From Steve Hoffman forums:
[T]he group featured none other than Dino Danelli and Gene Cornish from the Young Rascals. Their self-titled LP "Bulldog" is a very solid album, musically. However, lead-vocalist Billy Hocher isn't the most dynamic singer in the world - he kinda wears that raspy vocal style out pretty quick IMO. Otherwise essential for Rascals freaks and completists.
From the Rascals on Wikipedia:
Cornish and Danelli worked together in Bulldog, who released two albums — one for MCA Records in 1973, the second for Buddah in '74 — and Fotomaker, who issued three albums on Atlantic in 1978-79. In 1982, Danelli joined Steve Van Zandt in Little Steven and the Disciples of Soul for the group's first two albums.