Really, there's SO many these days a list is kind of usless.
1) Rose
2) L3
3) Holdo
4) Jar Jar
5) Dexter
6) Empty Nest
7) Watto
8) Sleazbaggano
9) Zam Weasel
10) Boy-ba Fett
11) Roger R. Battle-Droid
12) Captain Phantastic
13) Spaz Kanata
14) DD-8
15) Generic Fux
16) Unkle Butt
17) Truffle Shuffle X-wing pilot
18) Supreme Pizza Stroke
19) Nose lady n' lover
20) Creepy old ladies of SW: PT Librarian, Ani's market friend, "what's your name?" TROS lady
21) Yoda's ugly sister
22) The armless worm thing from TROS
23) TPM small kid wearing Greedo cosplayer costume
24) Ani's other street boy friend (so boring/bad I got nothing on him)
25) Aria Sing
26) Every member of the TPM Jedi Council
27) Shmi Snorewalker
28) Muppet Younglings with helmets
29) Two-headed race announcer (both modeled on Rick McCallum)
30) Porn birds from Luke's island
31) Turtle nuns from Luke's island
32) Looney Tunes fish from Luke's island
32) Saggy seacow from Luke's island
33) Horse-bunny racehorses
I mean there's at least another 20 off the top of my head, but I can't type any more. Amazing that there's some from the OT like Ewoks, Yuzzum and Salacious (aka Phil Tippett's coke-snorting output) but they just can't edge their way into the top 50.
Thought this was interesting on Looper (which I do kinda agree with,) a character there's even a thread for on here: