Mara Sunday

Mara Sunday is the adopted sister of James, Katrina, Anouk and Stanley, the adoptive daughter of Stefan and Riley, the adoptive cousin of Katharine and Kaleb, the adoptive niece of Jake and Marie and the adoptive granddaughter of Gerda and her unnamed late husband. She is a female orange tabby and is described to be the "baby of the family", which is merely metaphorical since she is 8 (5 in The Katrina Sunday Movie) and the youngest member of the Sunday Family.

She made a cameo debut in "Could it be Matthew Williams"?

Personality
Mara is a laid-back and sweet orange tabby cat. She enjoys her family's company. She can be bossy toward her family, though, especially when she wants lots of attention. Her cuteness is hard for anyone to resist.

Mara is very affectionate, especially toward Katrina and Anouk. She will want unlimited petting and attention from her family and will purr. She even walked towards Katrina in "Starting a Group for Hetalia Fans".

Appearance
Mara is an orange tabby, as her fur is orange with patterns and a mark on her forehead. She also has green eyes. She has a salmon nose, thought it also has black spots. Some of her whiskers are also black, but others are white.

In her anthropomorphic form, Mara retains her orange tabby appearance and her green eyes, but her style more closely resembles Gumball Watterson's from the Amazing World of Gumball. She also wears a turquoise T-shirt with a tan handbag and a gold star necklace, a magenta skirt and socks and true-blue shoes.

Katrina
Mara is really close to her older sister, Katrina. She walked up to her in "Starting a Group for Hetalia Fans." She has loved Katrina as a sister ever since she was adopted as a baby.

Anouk
Mara and Anouk rarely interact with each other. Mara did not recognize her in "My Sisters and I wish Dad a Happy Father's Day". She just referred to her as "The Green Girl" and did not remember her name.

Stefan
Mara is a loving daughter to Stefan. She is the cute one so she thinks she'll get the most attention.

Stanley
Mara is Stanley's younger sister. They seem to have an "on-and-off" compatibility, but they still are the best of friends. Stanley, however, threw poop at Mara and she threw fire at him as a revenge.

Trivia

 * She is the baby of the family, meaning she is the youngest.
 * She is based on her real life self, Sara the cat.
 * Her outfit as anthropomorphic resembles Lily's from the Scribblenauts series.