Clem Cattini Roussos, the Goodies, John Betjeman, Malcolm and Alwyn, John Schroeder, Paul McCartney, Hank Marvin, Mike Batt, Chris Spedding, Bob Downes, Dave Kelly, Christopher Neil, Evelyn Thomas, Barbara Pennington, Slapp Happy, Mike Berry and Grace Kennedy, and prog rock bands including Beggars Opera, Amazing Blondel and Edwards Hand. Cattini has played on at least 44 UK number 1 singles, including "Telstar", Ken Dodd's "Tears", Rolf Harris's "Two Little Boys", Clive Dunn's "Grandad", "Ernie (The Fastest Milkman in the West)" by Benny Hill, "Whispering Grass" by Windsor Davies and Don Estelle, Peters and Lee's "Welcome Home", Typically Tropical's "Barbados", J. J. Barrie's
Don Estelle of "Paper Doll" which reached number 41, and a top ten LP, "Sing Lofty" (1976), all three were recorded with "It Ain't Half Hot Mum" co-star Windsor Davies. Estelle also acted in the films "Not Now, Comrade" (1976) and "A Private Function" (1984) as well as "" (1984) alongside Melvyn Hayes, who also appeared in 'It Ain't Half Hot Mum". In the first series of "The League of Gentlemen", he made brief appearances in two episodes as Little Don, the keeper of the Roundabout Zoo (a zoo on the island of a roundabout). In 2001, he appeared in an episode