Karen

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

Season 1

 * "The End": She is 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 is 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 first appears on Banana Barbara's painting, then is one of the many people who want to be the 1,000,000th customer.
 * "The Downer": She watches Gumball cause a traffic jam.

Season 4

 * "The Signature": She is seen working at the City Hall.
 * "The Parking": She is in her car.
 * "The Romantic": She is at the musical number.
 * "The Apprentice": She is at Chanax Inc.
 * "The Wicked": She is seen in the mall during Margaret's rampage.
 * "The Traitor": She is at the cinema.
 * "The Love": She slips on Melted Cheese Guy's sandwich.
 * "The Awkwardness": She is seen at Elmore Shopping.
 * "The Night": She drives her car at an intersection.
 * "The Misunderstandings": She is seen at Dinner at the mall.
 * "The Blame": She is at the PTA meeting.
 * "The Fury": She is seen at a workstation in the Rainbow Factory.
 * "The Disaster": She is at the mall.

Season 5

 * "The Guy": She can be seen in front of the mall.
 * "The Boredom": She appears during Sal's song.
 * "The Choices": She attends Richard and Nicole's wedding.
 * "The Code": She is on the bus.
 * "The Slide": She is waiting at a bus stop with Hexagon Lady and Cowboy.
 * "The Copycats": She is seen at her car.
 * "The Stars": She can be seen in the mall.
 * "The Diet": She is in the crowd watching Richard.
 * "The Menu": She appears at the mall.
 * "The Uncle": She appears at the plane.
 * "The Heist": She appears at the bank.
 * "The Worst": She is seen at work.
 * "The Deal": She notifies Nicole of her encounter with Mr. Yoshida.
 * "The List": She is seen with Nicole and Hexagon Lady on a camera.

Season 6

 * "The Cage": She is seen in the crowd cheering for Corneille.
 * "The Sucker":

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 is seen working at the City Hall.
 * She is a waitress at Dinner, at the Elmore Mall.
 * She works at the Rainbow Factory.
 * She works at the bank.
 * She has a daughter, as revealed in "The Boredom."

Karen