Alan Lancaster (born Alan Charles Lancaster, 7 February 1949 in Peckham, London, England) is a bassist and a founding ex-member of the English rock band, Status Quo. As well as contributing to songwriting, he was also one of the lead vocalists on albums and live concerts taking the lead on tracks such as "Backwater", "Bye Bye Johnny", "High Flyer" and "Roadhouse Blues", etc.

Alan Lancaster formed the group in 1962 with his then schoolmate Francis Rossi. His final performance as Status Quo was at Wembley Stadium on 13 July 1985 for the opening of Live Aid.

Following "Live Aid", Lancaster's relationship with Francis Rossi became increasingly strained, when Francis Rossi and Rick Parfitt covertly began recording a new album under the name of "Status Quo". Unbeknown to Lancaster - by now living in Australia - and the group's then recording company, Rossi had utilised the assistance of the group's then manager, to drawdown on the group's contracted recording advances, provided by Phonogram Limited. Lancaster was substituted with session musician John 'Rhino' Edwards, who had been recording on a solo project of Rick's - "Recorded Delivery" - which was eventually scrapped. Edwards remains Quo's bassist to this day.

Richard John Parfitt, OBE (born 12 October 1948) is best known for being a singer and the rhythm guitarist in the English rock band Status Quo.

Born in Woking, Surrey, Parfitt attended Goldsworth School, Woking and first met band member Francis Rossi in 1965 in Butlin's Minehead whilst he was playing as Ricky Harrison in a musical trio called 'The Highlights'.^{[citation needed]} Rossi was playing with the Spectres (forerunner of Status Quo) at the time and Parfitt was sufficiently impressed to approach him with a view to working together. Nothing came of the meeting until 1967 when Parfitt joined Rossi, Alan Lancaster, John Coghlan and Roy Lynes to form the classic Quo lineup.

Parfitt has been a continuous member of the group, and has penned some of their greatest hits, sometimes in collaboration with the group's keyboard player Andy Bown, among them "Whatever You Want", "Again and Again", and "Rain". He recorded a solo album in 1985, but it was never released. Among musicians on the record were bassist John Edwards and drummer Jeff Rich, formerly with the Climax Blues Band and Judie Tzuke. He has earned the nickname 'The WOMORR' (The Wild Old Man of Rock 'n' Roll). Parfitt is known for his trademark white Fender Telecaster – a 1965 model.