Origin

Karen Beecher met Mal Duncan when he was in the teen titans original team. They worked together on developing the Gabriel Horn, and it was during this project that they fell in love.

Because Karen felt that the Titans did not appreciate Mal, she went back to the drawing board and came up with the Bumblebee's uniform and equipment.

She broke into Titans Lair: a move which led the Titans to believe that she was an enemy.

Her true plan was meant to give Mal a chance to flex his powers and look good in front of the other titans, but Mal's teammates defended him, this ended when Bumblebee escaped, with her identity still intact. Karen learned how much Mal's friends respected and cared for him.

Karen revealed her identity to Mal and also to the Titans, and she apologized for her actions. Eventually, Bumblebee joined the Teen Titans, she was a member until the group disbanded.

Karen took night classes in physics, computer technology and political science.

Marriage

Karen retired from being a super heroine and married Mal Duncan. She received an offer to work at the San Francisco branch of S.T.A.R. Labs as a research technician.

Bumblebee aided the Titans again during the Technis Imperative conflict

She was a member in Titans L.A was formed with that included Beast Boy, Flamebird, Herald,Terra, Hero Cruz, Captain Marvel Jr. and Bushido.

Karen continued to work at S.T.A.R. Labs as an engineer and designer for non-lethal weapons.

She was part of Donna Troy's team of heroes for a space mission during the Infinite Crisis, along with Mal. During their mission, Bumblebee was irradiated with a strange kind of energy which caused her to shrink down to six-inch height. Trapped at this size, the diminutive heroine must take special meds to keep her tiny heart from going into cardiac arrest.

Bumblebee and Vox decided to join the Doom Patrol.

Animated Version:

In the Teen Titans cartoon series, Bumblebee is a member (and possibly the leader) of Titans East, originally seen working undercover as a member of Brother Blood's H.I.V.E. Academy. This version of Bumblebee can shrink down in size while growing wings for flight, and fires electrical blasts from two weapons shaped like the letter "B". She initially has an antagonistic relationship with Cyborg, but the two later become friends.

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