All members in order of appearance

1 Mick Box guitars 1970-present
2 David Byron vocals 1970-76
3 Paul Newton bass guitar 1970-71
4 Alex Napier drums 1970
5 Ken Hensley keyboards, guitar & vocals 1970-80
6 Nigel Olsson drums 1970
7 Keith Baker drums 1970
8 Iain Clark drums 1970-1971
9 Lee Kerslake drums 1971-79, 1981-2007
10 Mark Clarke bass guitar 1971-72
11 Gary Thain bass guitar 1972-75
12 John Wetton bass guitar 1975-76
13 John Lawton vocals 1976-79
14 Trevor Bolder bass guitar 1976-81, 1983-2013
15 John Sloman vocals 1979-81
16 Chris Slade drums 1979-81
17 Greg Dechert keyboards 1980-81
18 John Sinclair keyboards 1981-85
19 Bob Daisley bass guitar 1981-83
20 Peter Goalby vocals 1981-85
21 Steff Fontaine vocals 1986
22 Phil Lanzon keyboards 1986-present
23 Bernie Shaw vocals 1987-present
24 Russell Gilbrook drums 2007-present
25 Dave Rimmer bass guitar 2013-present

+ John Jowitt bass guitar 2013 tour