He has been credited as the catalyst in bringing the unrelated Walker Brothers to the UK in 1965 where, for a couple of years, they enjoyed commercial success. He had two minor UK hit singles while still a member of the group in 1966. The Walker Brothers split in May 1967 with all three members going solo.
In 1967 he founded Gary Walker and The Rain, which consisted of Joey Molland (guitar and vocals); Charles "Paul" Crane (lead vocals, guitar); and John Lawson (bass guitar).
"Cutie Morning Moon" (Scott Walker/Masaharu Honjo)/"Gary’s Theme" (Masaharu Honjo) – Philips FS 1041 - 1968 (Notes: Japan only released singlerecorded with The Carnabeats, produced by Scott Walker who also played bass guitar)
"Magazine Woman" (J Molland); "The Sun Shines" (P Crane); "Doctor Doctor" (J Molland); "I Can't Stand To Lose You" (G Leeds/P Crane); "Market Tavern" (J Molland); "Spooky" (Middlebrooks/Shapiro); "Take A Look" (J Molland); "The View" (G Leeds/J Molland); "If You Don't Come Back" (Leiber/Stoller); "Thoughts Of An Old Man" (G Leeds/J Molland); "Francis" (Leeds/Molland/Crane/Lawson); "I Promise To Love You" (P Crane): "Whatever Happened To Happy" (Bonner/Gordon)