With Jimbo and Dolph, there really is no one else worth adding.

Here is a list of all the characters we still need. This is a very long list. I found it on Wiki.

Akira

Ms. Albright

Aristotle Amadoplis

Atkins, State Comptroller

Mary Bailey

Birchibald "Birch" T. Barlow

Benjamin Doug and Gary

Bill and Marty

Blue haired Lawyer

Wendell Borton

Jacqueline Bouvier

Capital City Goofball

Crazy Cat Lady

Charlie

Chase

Scott Christian

Mr. Costington

Database

Declan Desmond

Lunchlady Doris

Ernst and Gunter

Francesca

Frankie the Squealer

Baby Gerald

Ginger Flanders

Gino

Mrs. Alice

Gloria

Gil

The Happy Little Elves

Judge Constance Harm

Bernice Hibbert

Elizabeth Hoover

Lionel Hutz

Jacques

Rachel Jorden

Princess Kashmir

Rabbi *

Cookie Kwan

Dewey Largo

Lenny Leonard

Lewis

Helen Lovejoy

Lurleen Lumpkin

Captain Horatio McCallister

Roger Meyers Jr.

Troy McClure

Dr. Marvin Monroe

Mrs. Muntz

Captain Lance Murdock

Bleeding Gums Murphy

Lindsey Naegle

Manjula

Sanjay

Old Barber

Old Jewish Man

Patches and Poor Violet

Herbert Powell

Janey Powell

Lois Pennycandy

Ruth Powers

Dr. J. Loren Pryor

Radioactive man

Richard

Dave Shutton

Amber Simpson

* Simpson

Judge Roy Snyder

Jebediah Springfield

Allison Taylor

Cecil Terwilliger

Johnny Tightlips

Uter

Kirk and Luann Van Houten

Dr. Velimirovic

Veterinarian

Sarah Wiggum

Wiseguy

Yes Guy and Artie Ziff

There is also many different skins for Homer, Marge and Bart.