Estel, don't forget old mayor Will Witfoot
.
There's a handful from Gondor that are missing in ROTK. (Not saying that I'm dissapointed in them not being there).
Imrahil
Forlong
Duinhir
Duilhin
Derufin
Golasgil
Hurin
Dervorin
Beregond
Hirluin
Earnur (mentioned)
Ioreth
Ingold
Hurgon
Others:
Halbarad
Ghan-buri-ghan
Thain Paladin
These two I don't remember being in the movies, but I'm not sure:
Damrod
Anborn
Just a couple from The Two Towers:
Fimbrethil
Quickbeam
Fladrif
Erkenbrand
Eomer (just joking, ha)