Peri Brown (The Daft Dimension)

A version of Peri Brown existed in the Daft Dimension. She was a companion of the Sixth Doctor.

Travels with the Sixth Doctor
During one adventure with the Sixth Doctor, he found himself needing the toilet. After rummaging through his pockets, he found a 20p coin and ran into a public toilet, announcing "Change, my dear, and it seems not a moment too soon!". (COMIC: )