Karen

Karen is a recurring, minor character in The Amazing World of Gumball. She is Larry's girlfriend. She first made a cameo appearance in "The End," as a customer in line.

Episode Appearances
Season 1
 * "The End": She can be seen waiting in line.
 * "The Laziest": Larry proposes to her, but, he freaks out, and unintentionally throws spaghetti on her, causing them to break-up.
 * "The Goons": She's shown having a picnic with Larry, as he proposes to her once again.

Season 2

 * "Christmas": She appears working for Elmore Shopping, dressed like an elf.
 * "The Limit": She appears working for Elmore Shopping.
 * "The Castle": She can be seen giving free samples at Elmore Shopping.
 * "The Finale": She was mentioned in passing by Anais.

Season 3

 * "The Name": She is seen in the shopping line of Elmore Shopping.
 * "The Extras": She gives the 3D Cube Employee, one of the Clipboard Men, and Charlie their paychecks at Chanax Inc.
 * "The Law": She appears driving her car, when the Doughnut Sheriff attempts to run citizens over on the sidewalk.
 * "The Mothers": She and an orange version of her appears working at Elmore Shopping.
 * "The Shell": She appears in the theater audience.
 * "The Butterfly": She is seen taking calls at the Emergency Help Center through a song.
 * "The Question": She is kissed by Larry while walking out of the Ripley 2000 office.
 * "The Oracle": She appears on Banana Barbara's painting.
 * "The Downer": She watches Gumball cause a traffic jam.

Season 4

 * "The Signature": She is seen working at the town hall.
 * "The Parking": She is in her car.
 * "The Romantic": She is at the musical number.
 * "The Apprentice": She ia at Chanax Inc.
 * "The Wicked": She is seen in the mall during Margaret's rampage.

Trivia

 * The Receptionist in "The Painting" resembles Karen; the only difference being her different yellow color, and having buck-teeth.
 * An orange version of Karen appeared in "The Mothers."
 * Like Larry, Karen also has multiple jobs:
 * She works at Elmore Shopping.
 * She is apparently an accountant at Chanax Inc., as she hands out paychecks.
 * She is a receptionist at the Emergency Help Center.
 * In "The Signature," she was seen working at the City Hall.