Full Cast — Threshold (2005–2006)

Carla Gugino

Dr. Molly Anne Caffrey

Brian Van Holt

Sean Cavennaugh

Brent Spiner

Dr. Nigel Fenway

Rob Benedict

Lucas Pegg

Peter Dinklage

Arthur Ramsey

Charles S. Dutton

J.T. Baylock

Lauren Tom

Janet TAM

Diane Venora

Andrea Hatten

Scott MacDonald

Captain Manning

Kevin Durand

Jake Abel

Brian Janklow

Jacqueline Kim

Michael Papajohn

Amanda Fuller

Seamus Dever

Agent Detoro

William Mapother

Joe Penny

Tanner Richie

Young Tate (voice)

Wayne Duvall

Elizabeth Berkley