"E?"
Letter E appears in The Letter Factory. It is the 5th letter of the alphabet. He is voiced by Eddie Cummings. They are mint-green, but in Talking Words Factory and Code Word Caper, they are red.
Inspiration
Carl Fredrickson (Up), The Head of the Herd (Nellie the Elephant), Grampu (Oobi), Uncle Chuck (Sonic the Hedgehog), Grandpa Squarepants (Spongebob Squarepants), Toadsworth (Super Mario), OJ (TUGS), Toby (Thomas and Friends), Scrooge McDuck, Old Puffer Pete (Chuggington), Lizzie (Cars), Old Pig (Garfield and Friends), Grandpa Boris (Rugrats), Grandpa Abe, Vicar (Wallace and Gromit), Grandpa George and Pa Grape (VeggieTales) and other elders.