Higginson took over the role of Dr. Elizabeth Weir from Jessica Steen in a guest spot on the season eight opener of Stargate SG-1. She was then carried over as the leader of the Atlantis expedition on Stargate Atlantis and is still playing that role as of the show's fourth season, though reduced from a main cast member to a recurring role.
Torri was once linked romantically to John Kastner of the Canadian rock band Doughboys. Her younger brother Luke is lead singer of the Toronto band Debaser.
In 1995, two years prior to Stargate SG-1's premiere, Higginson starred in the 1995 movie Jungleground with three other actors from the Stargate franchise: Peter Williams (Apophis), JR Bourne (Martouf), and Lexa Doig (Dr. Lam).