The cat athlete is, as his name implies, an anthropomorphic cat involved with sports.
This muscular feline, whose name is unknown, competed against several contestants including Mickey Mouse and Wienie in a cross country event in 1932. Dishonest and unfair, this arrogant fellow cheated by pulling several pranks on Mickey and making it harder for the mouse to succeed. Despite his best efforts to do so, the cat athlete failed to beat Mickey in the race, which included running, pole-vaulting, boating, and bicycling.
His personality, appearance, and relationship to Mickey resemble that of Creamo Catnera. It is possible that Catnera and the cat athlete are the same person, though there is no confirmation that this is in fact the case.
Behind the scenes
The cat athlete appeared in the 1932 theatrical cartoon short Barnyard Olympics.