Prof. Power
In-Game Bio
Penelopie Power led a full life even after she left the spotlight of child stardom.
Although the tragic loss of her arm limited her actions as a hero, she remained a vocal advocate for heroes and victims alike and never quite gave up on adventuring. She founded over 30 heroic studies programs at universities around the world, has "assisted" on countless Portal expeditions to alternate universes, and so many rumors of time travel persist about her that some circles even address her with the title of "Mender."
5 years ago she withdrew from the public eye entirely. Her book, I Mistook You for Somewhen Else which made the case that the human mind was ill-equipped for experiencing vast numbers of alternate timelines or dimensions was seen as autobiographical by many, but it also coined the name "Alt-timer's" for the erratic behaviors of many a time-traveling mad scientist.
When asked why she chose now to return, she'll only say, "It's time."
Background
(more to come)