Helix

Billy Campbell

Dr. Alan Farragut

Meegwun Fairbrother

Daniel Aerov

Jordan Hayes

Dr. Sarah Jordan

Mark Ghanimé

Major Sergio Balleseros

Neil Napier

Dr. Peter Farragut

Kyra Zagorsky

Dr. Julia Walker

Cat Lemieux

Dr. Doreen Boyle

Steven Weber

Brother Michael

Matt Long

Dr. Kyle Sommer

Cristina Rosato

Leila Weisner

Hiroyuki Sanada

Dr. Hiroshi Hataki

Severn Thompson

Sister Anne

Alison Louder

Sister Amy

Robert Naylor

Spencer

Erica Anderson

Grace

Tamara Brown

Dr. Sulemani

Patrick Baby

Dr. Duchamp

Jeri Ryan

Constance Sutton