From left to right:
Claude Cat, Pussyfoot and Marc Antony.
Marc Antony (referred to as Marc Anthony on his food dish in Feed the Kitty) and Pussyfoot (sometimes called "Kitty", but in some of the WB animation history books, she is referred to as "Cleo") are animated characters in the Warner Bros. Looney Tunes and Merrie Melodies series of cartoons. Marc Antony is a burly bulldog that is usually brown with a tan belly and black ears, though his coloration varies in some shorts. Pussyfoot/Cleo, in contrast, is an extremely cute kitten to whom Marc is utterly devoted. Chuck Jones has discussed the efforts to maximize the kitten's sheer adorableness. All head and eyes, she is black with a white face and belly and a white tip on her fluffy tail.
Film appearances
Animator Chuck Jones first introduced the odd duo in his film Feed the Kitty, first released on February 2, 1952. Prior to this, a bulldog looking like Marc Antony had appeared in previous shorts with Claude Cat and Hubie and Bertie, but it was never named. In the short, Marc Antony adopts the interminably cute kitten only to receive a stern warning from his owner not to "bring one more thing into this house . . . not one single solitary thing!" Marc Antony is thus forced to go to extreme lengths to keep his new pet under wraps. Meanwhile, Pussyfoot's curiosity gets her into a series of life-threatening situations, which Marc Antony must, of course, rescue her from. Jones would largely repeat the scenario in 1953 with Kiss Me Cat, only this time Marc Antony tries to convince his owners that the kitten is a champion mouser so that they will let him keep her. (Oddly, in this episode, one of the owners refers to the kitten as "Him", but this pronoun might have been meant to be neutral, or was a mistake.) In Feline Frame-Up (1954), Jones pitted the dog against another of his lesser-known players, Claude Cat; later in 1954, Marc Antony (or a bulldog looking just like him) made a brief appearance in the Claude Cat/Frisky Puppy short No Barking.