U.K.

U.K.

U.K. (Short for U Knowit) is a robot Ferb built the day he was born. When Ferb left to to live in the U.S. he gave a locket and U.K. to Emily. 6 years later, when Emily moved to the U.S. she took U.K. with her so when she met once again ferb down the street U.K. once again saw his loyal creator. U.K. looks like the muppet 80's robot form the 2011 comedy The Muppets