At the time, Daniel Radcliffe was 11 years old when he played the titular character, Emma Watson was 10 when she portrayed Hermione Granger, and Rupert Grint was 12 when he started playing Potter's loyal bestie, Ron Weasley.
They were supposed to be portraying 11–17 year olds, though most Hogwarts students varied by a few months. The first movie was released in 2001, the last in 2011, so just add ten years on to each.
Print out a single day guest pass from Sam's Club's website. The guest pass allows you to shop at Sam's Club without a membership, but you'll be charged a 10% service fee. California, South Carolina, and Elmsford, NY are exempt from the fee.
You don't need to have a Google account to join a Hangout meeting, but you would need an invitation to participate. Specifically, the user who invites you needs to have a G Suite account in order to access the feature that allows non-Google users to join a meeting as a guest.