Miss Rabbit (birth name Raina Rabbit) is Mummy Rabbit's sister and Rebecca Rabbit's aunt who tends to have a ton of jobs such as a bus driver, a cashier, an engineer, a fireman, a helicopter pilot, a china shop owner, a recycling plant owner, an air hostess, a firefighter, a librarian etc. It has even been made into a joke in the episode "Miss Rabbit's Day Off", and "The Queen". Sometimes she is confused with Mummy Rabbit.
In InsaneBurrito's fanon, she gains her job expertise via a machine called "The Expert Machine 3000" created by her crazy uncle. She also has an IQ of 199 due to her expertise in tons of jobs.
She looks exactly the same as Mummy Rabbit.
In CreationBeTheWorld23's fandom she wears a teal dress with short aqua sleeves so she doesn't get confused with Mummy Rabbit.
The CGI animated version of her has slightly darker skin and her dress that she wears in CreationBeTheWorld23's fandom also has pink flowers on it, and she has purplish eye shadow.