Eileen is a main character of Regular Show. Eileen is a shy, intelligent, and timid mole that surprisingly looks human. She works at The Coffee Shop with Margaret, better known as her co-worker and one of her really good friends, likely her best friend. She has a big crush onRigby, but he doesn't seem to care for her about it. She even tried to make Rigby jealous. Eileen first debuted in "Brain Eraser". She is voiced by Minty Lewis, who is also the storyboarder for the show.
As said above, Eileen is a short mole with tan fur. She has red glasses and wears the same uniform as Margaret, although in "Do Me a Solid", she wears a pink shirt with ruffles around the neck and sholders and a blue skirt. She has a small light brown tail and brown hair tied into a side ponytail. In Brain Eraser, her ponytail was on the right side, in Do Me a Solid, her ponytail was moved to the left side, and her glasses are red. In Brain Eraser, she didn't have white in her glasses, as seen down below, but in Do Me a Solid, she did. InFirst Day Eileen appears very different than usual. She only had pupils for eyes like she did in Brain Eraser except her glasses were pointed down like reading glasses and she wore a purple shirt with a green oval in the middle with a small green skirt. Also, in ""Camping Can Be Cool"," she was wearing a light bergundy hoody and light army green shorts. Eileen never wears shoes in any episode just like Mordecai, Rigby, and Margaret. She and Margaret wear clothes, unlike Mordecai and Rigby. Eileen looks surprisingly human. Her eyes are extremely small and squinted, which is why she wears glasses.
- In Camping Can Be Cool, it is revealed that she's good at camping because of a phase she was going through, where she got lost in the woods a lot.
- She is allergic to duck dander.
- Eileen always walks barefoot.
- Even though Rigby didn't like Eileen at start, and in Camping Can Be Cool when she started the fire, Rigby said she was cool, and Eileen got real excited and blushed, this could mean the start of Rigby`s relationship.
Eileen's gallery can be seen here.