For the lion, see Leo (lion). Leo is a secondary character and a member of the Cat Pack. He debuted in the Season 8 episode and 5-minute animated short, "Cat Pack: Marshall, Leo and a Ferris Wheel". He serves as the Lion member of the team. Leo is a Tabby cat whose big cat inspiration is the lion, which influences his power of super strength. He’s roaring to go! Leo is one super-strong, super-brave kitty cat! When he puts on his BIG CAT power suit, he’s ready to rumble and roar like a lion. His