Yewll infobox 250px
Yewll in season 1
Season(s) 1
Portrayed by Trenna Keating
First appearance Pilot
Latest appearance Past Is Prologue
Episode count 9
Status Alive
Species Indogene
Occupation Physician
Residence Defiance, North America

Yewll is a recurring character in the first season. She is portrayed by Trenna Keating, and makes her debut in the series premiere.

Yewll is a female Indogene. She is Defiance's physician.



Doc Yewll arrived in Defiance following the Pale Wars, intending to stay a week before moving on to dispense medical care in other war-torn areas. Eight years later, Yewll still serves as the town’s doctor. As an Indogene – a technologically advanced Votan race – she often finds her natural pragmatism perceived as a lack of bedside manner by most humans. However, Yewll’s unflappable brilliance is indisputably one of Defiance’s greatest assets.[1]


Season 1 appearances
Pilot Down in the Ground Where the Dead Men Go The Devil in the Dark A Well Respected Man The Serpent's Egg Brothers in Arms
Goodbye Blue Sky I Just Wasn't Made for These Times If I Ever Leave This World Alive The Bride Wore Black Past Is Prologue Everything Is Broken


  1. "Doc Yewll | Defiance". Retrieved July 7, 2013.