Carol (キャロル, Kyaroru) is an assistant to Gustav St. Germain, Vice President of the Daily Days. Gustav appears to be her mentor as well as her employer, often trying to educate her as a photojournalist, and giving her varying amounts of cryptic "points" based on her performance.

In the ninth novel she is described as looking "no older than fifteen" (in 1934) but acting younger and 'childlike'. In the fourteenth novel, she is said to be "not yet fifteen" (also in 1934). The camera she usually wears around her neck is a Leica camera. She is officially interning as a photographer at the Daily Days.

In 2003, she is known as a "famous reporter from the annals of history."