Satyakam (his best role IMO)
Anupama
Phool aur Patthar
Bandini
Ghazab
Sholay
Jeevan Mrityu
Yaadon Ki Baraat
Khamoshi (just his back profile is so telling all through the movie)
Jugnu

PS: While you said you liked his action roles, most of the above are actually drama/comedic roles. He is such a revelation in those.