Katherine Elizabeth Sully
Biographical Information
Race: Caucasian
Status: Alive
Origin: Colorado Springs
Parents: Michaela Quinn (Mother)

Byron Sully (Father)

Family: Matthew Cooper (Adopted brother)
Colleen Cooper (Adopted sister)
Brian Cooper (Adopted brother)
Robert E."(God-father)"
Grace "(God-mother)"
Production Details
First Appearance: When a Child Is Born, Part 2
Actor: Alexandra Calabrese
McKenzie Calabrese
Megan Calabrese

(seasons 5-6)
Kaile Zaretsky (Revolutions)
Sara McRae (The Heart Within)


Katherine Elizabeth "Katie" Sully is the daughter of Dr. Michaela Quinn and Byron Sully and the adoptive sister of Matthew, Colleen, and Brian Cooper.


Season 4Edit

Season 5Edit

Season 6Edit


Family TreeEdit

Theodore Quinn
Josef Quinn
Elizabeth Quinn
Carlton Quinn †
Marjorie Quinn
Rebecca Dickinson
Maureen Quinn
Claudette Quinn
Dr. Michaela Quinn
Byron Sully
Katie Sully