So Appice and Bogert brought in blues guitarist Jim McCarty from Mitch Ryder's Detroit Wheels and The Buddy Miles Express, and singer Rusty Day (born Russell Edward Davidson) from the Amboy Dukes.
This line-up managed three albums (Cactus, One Way... Or Another and Restrictions) before interband troubles led to McCarty quitting at the end of 1971. Shortly afterwards Rusty Day was fired from the group. The fourth and last Cactus album ('Ot 'N' Sweaty) featured original rhythm section Bogert and Appice joined by Werner Fritzschings on guitar, Duane Hitchings on keyboards and Peter French (ex-Leaf Hound) on vocals.
In the late '70s Rusty Day formed another version of Cactus in Orlando, where he had relocated. This version of Cactus featured Steve Dansby on guitar, Dan Keylon and later John Sauter on bass, Frankie Robbins and later Gary Moffatt on drums. Frankie Robbins' brother Dennis along with Dan Keylon also played with the Rockets and Jim McCarty. There are no known studio recordings from this era, though live recordings do circulate. On March 6, 1982, Rusty Day died from gunshots as a victim of a drug deal gone bad.
After a long hiatus, Cactus re-emerged in June 2006 with two appearances in New York City: a radio appearance on The Radiochick Show, and their first show since 1972 at B.B. King's Blues Club in Times Square. This show was a warm up for the gig which sparked the reunion, an appearance at the Sweden Rock Festival in Norje, Sweden. The 2006 version of Cactus sees original members Appice, Bogert and McCarty reunited and joined by former Savoy Brown frontman Jimmy Kunes on vocals. Randy Pratt joined the band in NYC and Sweden on harmonica. The group has also released a new album, Cactus V.