Piper Mack

Piper Mack (Rebecca Kelly) was one of the time travelers from 2015.

Before the Event
Piper worked in Miles City, Montana. At the age of 18, she began an affair with married co-worker Elias Adams. Their relationship ended when his wife found out. One of her habits was to post her video diary online. She was a test subject in the diabetes "cure" at Zion, which gave her strange dreams. She began to get sick, however, a few years later.

Season One
In 2015, Piper was diagnosed with pancreatic cancer. Out on a run, she vanished and reappeared. When she got home, she learned from the most recent video diary entry that it is 2012. She left a message to guide her 2012 counterpart and jumped off a bridge, only to wake up in the Dream World. Later, Piper encountered other time travelers.

Season Two
Liz Stroller confirmed to Hillary Cole that Piper's unidentified body had been pulled from the river near Miles City.

Season Three
In the dream, Piper had created her own town, but found herself haunted by the demons of her past that her subconscious had created. When she encountered another visitor, Amanda, who had accessed the dream world through a drug called Thumper, she decided to show her her world. She also learned that she has been dead for two years.

Appearances
Season One (2012)

The End

Interception

Dreamwalking

Paradox

Small World

Collide

Season Two (2013) 2013 Demons Axiom Lost Time Penumbra Umbra

Season Three (2015) 2014 Everlasting Chains The Grace of Our Lord