The Comic-Book Character:
Unusually, Greer Grant Nelson was already a costumed crime-fighter, The Cat, before she became a superhero.
But she was transformed by the ancient race of Cat People into legendary half-human, half-feline Tigra, giving her fur, claws and great strength and agility.
The Movie Version:
Here, Tigra is well known to the Avengers, but considered too loose a cannon to play as part of the team.
Nevertheless, they are forced to seek her help when a little feline intuition comes in handy in a raid on HYDRA's jungle lair.