SIGMA 6 is the code name for a group of highly trained covert special mission operatives. Duke, Snake Eyes, Heavy Duty, Scarlett, Long Range and Tunnel Rat - who use high-tech, state-of-the-art gear along with their other hero skills to go up against the forces of evil.

G.I. Joe: Sigma 6 (2005)
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Eric Stuart
(26 episodes)

Amy Birnbaum
(26 episodes)

Michael Sinterniklaas
(26 episodes)

Mike Pollock
(26 episodes)

Roxanne Beck Raye
(26 episodes)

Suzanne Goldish
(26 episodes)

Suzanne Pleshette
(26 episodes)

Wayne Grayson
(26 episodes)

J. David Brimmer
(26 episodes)