Jeff Edmunds played the Stick and guitar and contributed vocals and effects on Of The Ferric Oxides in the Old Toilets from the album Sea of Peas.
Jaime Jamison wrote the lyrics for Karmic Cow from the album Sea of Peas.
Kim Novak sang and arranged all the vocals on Hippopotamus from the album Prum.
Duane Tate sang and arranged all the vocals on Dezincification from the album Sea of Peas.
Miles Walsh played guitar and assisted with the final mix of Hippopotamus from the album Prum.