The Unnamed Gray Cat is a deep gray-colored long-haired cat with yellow eyes and a black nose.
He was later seen again with Monty, Red, Smokey and Lucky and was seeing Stuart and Snowbell and then when Snowbell was almost breaking the branch he was standing with Red, Monty and Lucky and then the branch broke and all 4 of them were defeated by Snowball and ended up falling into the water. The Unnamed Gray Cat was the second to emerge out of the water all wet after he, Red, Lucky, and Monty got defeated.
After the Unnamed Gray Cat gets defeated, he, along with Smokey, Red, and Lucky was never mentioned or seen again in the rest of the franchise but Monty was seen in the rest of the franchise.
Like the other alley cats, the Unnamed Gray Cat is snarky and evil. Not much is known about him, as he never speaks or is referred to by name. Though he never speaks, his intentions are clear.