In the Present:
Tsukino Ikuko-Serena's Mother who's always pushing her to get good grades. Very kindhearted. She met her husband at a lake.
Tsukino Kenji-Serena's Father. He dotes on Serena and doesn't like to think of her having a boyfriend. (Do you think he'd flip if he found out who Rini really is?) At times, he can be very clueless.
Tsukino Shingo-Sammy in the NA version. Serena's Brother. Typical little brother. Enjoys being bratty and annoying towards Serena. He alone has the right to tease her.
Tsukino Chibi-Usa-Serena's parents think of her as Serena's cousin. Her and Ikuko have one of the closest relationships outside of the romantic ones. She is treated like a daughter. (Actually she is the Future daughter of Usagi. Not related to Chibi-Chibi in reality)
Tsukino Usagi-The eldest daughter. Is the "cousin" of Rini. (Actually she is the Future mother of Rini. Not related to Chibi-Chibi in reality)
In the Silver Millennium:
Queen Serenity- Serena's mother during the Silver Millennium. She sent Serena to the Future after the fight with Queen Beryl.
Her past father- there is no mention at all of a father in the Silver Millennium. There has been a lot of speculation on this.
Lita's parents were killed in plane crash. She lives on her own.
Professor Tomoe-Hotaru's father. He lives alone with his daughter. He is in charge of the Deathbusters. After the destruction of Pharaoh 90, he is returned to normal.
Tomoe-Hotaru's mother. Died. Not much is known about her.
Darien's parents were killed in a car crash when he was young. He was the only survivor of the crash. He is the hospital following the accident when first meets Serena. She is visiting her mother and her new baby brother. He considers himself as part of Serena's family. He lives alone.
In Crystal Tokyo:
Neo-Queen Serenity-Her mother in Crystal Tokyo (3000s). She is the Ruler of Crystal Tokyo. She is married to Neo-King
Endymion-Her father in Crystal Tokyo. He is married to Neo-Queen Serenity.
In the Present:
Rini lives with Serena's family. There she poses as Serena's cousin. (In reality, Serena is her future mother)
Her mother- is a doctor. She is the parent with which Ami lives.
Her father-currently not living with Ami. He is an artist.
Michiru, and Setsuna's Parents
There is no mention of their parents in the series. Since they are older, they are living on their own on Earth.