Melanie Bush/Other realities

Alternate counterparts of Melanie Bush existed in other realities. These individuals shared similarities with Mel from the Doctor's universe, despite existing in parallel universes or alternate timelines.

Flip-Flop
Mel knew of at least one other version of herself in an adventure on the planet Puxatornee. (AUDIO: Flip-Flop)

The Quantum Archangel
There was an alternate reality in which Mel became the Prime Minister who led the United Kingdom against an invasion of the Cybermen, only to be betrayed by an alternative version of the Third Doctor whose exile on Earth had never ended. (PROSE: The Quantum Archangel)

Heritage
A timeline existed in which Mel never returned home. She got married to Ben Heyworth and lived on the planet Heritage in the 61st century. They tried to conceive a child, but she was unable since she had gone through menopause. They went to a local geneticist, Wakeling, for help, and he created a clone of Mel. Furious when she found out, she argued with Wakeling, who accidentally killed her. (PROSE: Heritage) These events turned out to be the doing of the Council of Eight. The Council had eliminated the Doctor's companions from the timeline by causing their deaths. This was corrected when the Eighth Doctor defeated the Council. (PROSE: Sometime Never...)

Spiral Scratch
Mel could not ignore the potential of thousands of other versions of herself when the Sixth Doctor took her to Library of Carsus to explore the disappearance of parallel universes. (PROSE: Spiral Scratch)

Technician 38's universe
In one universe, Mel was a slave in a world where the Roman Empire never fell. Like her counterpart, she had a sister called Anabel. (PROSE: Spiral Scratch)

Melina Baal's universe
I another universe, Mel was a human/Silurian hybrid named Melina Baal. (PROSE: Spiral Scratch)

He Jests at Scars...
In one history, on the day Mel was supposed to meet the Doctor, she was distracted by Ellie Martin and she never encountered the Doctor. In 2012, Mel was killed by a brain tumour brought on by radiation from a mobile phone. (AUDIO: He Jests at Scars...)