Alec Guinness in Star Wars: Episode IV - A New Hope (1977)
OBI-WAN KENOBI
(appeared in Episodes II, III, IV, V and VI)
To keep things simpler, listed are only those Jedi Knights (that means no Padawans) who had a prominent role in either one of the six live-action films (Episodes I, II, III, IV, V, and VI).
(appeared in Episodes II, III, IV, V and VI)
(appeared in Episodes I, II, III, V and VI)
(appeared in Episode VI)
(appeared in Episode I)
(appeared in Episodes I, II and III)
(appeared in Episode III)