Barbara Miller

"Best dang mailman, woman, or animal on the force. At least until they catch me taking from the lost mail bin. But that's between us, eh?"

Barbara Miller is Sadie's mother and an employee of the Beach City postal service. She was first mentioned in the episode "Cheeseburger Backpack" and made her debut as a cameo in "The Return", before having a speaking role in "Love Letters", and her first major role in "Sadie's Song".

Personality
Barbara is loud and overly enthusiastic about everything, especially if it is related to her daughter, Sadie. Energetic to a point where she's violent, strongly steeping around the house and pal-slapping Steven in "Sadie's Song". However, she is understanding once an issue is explained to her, despite her difficult fault of not being a good listener.

Work Appearance
She wears a pale blue shirt/blouse with a turned down collar and short sleeves with the logo of a letter emblazoned on it. She wears blue-grey wide waist-banded shorts that end just above the knees. She has a tan support bandage around her left knee. She wears white high-leg socks and brown slip on shoes. She also carries a mail bag similar to Jamie's.

Sadie
As her mother, she cares very deeply about her, even packing her lunch before she goes to work. She may sometimes go overboard and care a little too much about activities Sadie is interested in. When Sadie is interested in something, Barbara will make her do something she doesn't want to.

Steven Universe
Barbara views Steven as a friend to Sadie. She invests in him helping her dress up Sadie for Beach-a-Palooza.

Jamie
They are both work acquaintances. While she yells at him if he doesn't get signatures for deliveries, she does not speak ill of him.

Greg Universe
While little of their relationship is shown, they seem to be well-acquainted enough to be on a first-name basis as she remarked, "Hey, you're Greg's boy!" upon meeting Steven.

Season 1

 * "Cheeseburger Backpack" (mentioned)
 * "Lion 3: Straight to Video" (indirectly mentioned)
 * "The Return" (debut, non-speaking cameo)

Season 2

 * "Love Letters"
 * "Historical Friction" (non-speaking cameo)
 * "Sadie's Song"

Trivia

 * She seems to have a knee support band on her left leg for an unknown reason.
 * She was indirectly mentioned in "Lion 3: Straight to Video" when Sadie talks about her mom making her lunches.
 * She has her first speaking role in "Love Letters", where she appears to be a mailwoman, co-worker to Jamie, and her name is revealed to be Barbara.
 * She also cameos as an audience member in "Historical Friction".
 * Her physical appearance (i.e. her face and hair) greatly resembles that of her daughter, Sadie.
 * Her first appearance was in a scene in "The Return", where the townspeople gathered near Greg and Steven, after Steven tumbled out of Greg's Van.
 * She yells at Jamie if he doesn't get signatures, as revealed in the episode "Cheeseburger Backpack".
 * This suggests she is Jamie's superior at the post office.
 * In Brazil, she is dubbed by a man (Charles Emmanuel, the same voice actor of Peedee).
 * In the episode "Sadie's Song" It seems she treats Sadie like a child, giving her teddy bears.
 * It is unknown if "Miller" is her last name as well, as Sadie's father has yet to make an appearance in the series.
 * Despite being female, she refers to herself as a mailman.