Here's a breakdown:
* Harry Potter: He's the main character, and we see him as an adult, married to Ginny Weasley and with three children.
* Ginny Weasley Potter: Harry's wife and a former Quidditch star.
* Albus Severus Potter: Their son, who's about to start his first year at Hogwarts.
* James Sirius Potter: Their middle child, who's likely a bit older than Albus.
* Lily Luna Potter: Their youngest child, who's still young and playful.
* Ron Weasley: Harry's best friend, who's married to Hermione Granger and also has three children.
* Hermione Granger Weasley: Ron's wife, a brilliant witch and a former Minister of Magic.
* Rose Granger-Weasley: Their daughter, who's also starting Hogwarts.
* Hugo Granger-Weasley: Their son, likely a bit younger than Rose.
* Neville Longbottom: A former Gryffindor classmate of Harry, now a Hogwarts professor.
* Luna Lovegood: A former Ravenclaw classmate of Harry, now a Magical Creature expert.
* Draco Malfoy: Harry's former rival, now a seemingly reformed wizard.
* Scorpius Malfoy: Draco's son, who's attending Hogwarts alongside Albus Potter.
* Molly Weasley: Harry's mother-in-law and a warm-hearted witch.
* Arthur Weasley: Harry's father-in-law and a Ministry of Magic employee.
* George Weasley: Ron's brother, a successful businessman with Fred's memory.
* Percy Weasley: Ron's brother, who works in the Ministry of Magic.
* Kingsley Shacklebolt: A former Auror and the Minister of Magic.
* Minerva McGonagall: The Headmistress of Hogwarts, who is shown as a younger woman during her younger days.
Please note that there are a few other characters shown briefly in the background, but these 19 individuals are the ones most prominently featured in the epilogue scene.