The Mask: Animated Series
Season 1, Episode 5: Sister Mask
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Stanley discovers a fabled "sister" mask that, when joined with his mask, allows him to control his wild alter-ego.
All Episodes - Season 1
Episode 1
The Mask is Always Greener on the Other Side (1)
Episode 2
The Mask is Always Greener on the Other Side (2)
Episode 3
Baby's Wild Ride
Episode 4
The Terrible Twos
Episode 5
Sister Mask
Episode 6
Shadow of a Skillit
Episode 7
Bride of Pretorius
Episode 8
Double Reverse
Episode 9
Shrink Rap
Episode 10
Mayor Mask
Episode 11
Martian Mask
Episode 12
How Much Is That Dog in the Tin Can?
Episode 13
All Hallow's Eve
Episode 14
Santa Mask
Episode 15
Split Personality