When writing this, I had way more details about the OC's than necessary, so I decided to tell you all about them. (This includes Details that wouldn't be in that oneshot, such as Hogwarts Houses). Plus, the Potters and Teddy (our Canon children, as I see them) You don't have to agree with my views on them. I just thought I'd say them.

Teddy Lupin

Full name: Edward Remus Lupin

Nickname(s): Teddy, Ted

DOB: 21 April, 1998

Parents: Remus Lupin & Nymphadora Tonks

Sibling(s) (in this story): Lyall Lupin, Ellie Lupin

Best Friend(s): [In the family] Victoire Weasley, Mia Potter

Hogwarts House: Hufflepuff

Hair Colour: commonly Turquoise (naturally black)

Eye Colour: commonly Blue (naturally brown)

Quidditch Position: N/A (will play as any position if there isn't enough people)

Lyall Lupin

Full name: Lyall Alastor Lupin

Nickname(s): Ly (not often, though. He prefers to go by Lyall. He'll accidently turn if someone calls Lysander "Ly" near him.)

DOB: 13 June, 2002

Parents: Remus Lupin & Nymphadora Tonks

Sibling(s): Teddy Lupin, Ellie Lupin

Best Friend(s): Dominique Weasley

Hogwarts House: Gryffindor

Hair Colour: commonly Green (naturally dirty blonde)

Eye Colour: commonly Green (naturally green)

Quidditch Position: Keeper

Ellie Lupin

Full name: Eliana Andromeda Lupin

Nickname(s): Ellie, El, Ana (very rarely, like no one in her family does, but some friends at school do.)

DOB: 18 May, 2008

Parents: Remus Lupin & Nymphadora Tonks

Sibling(s): Teddy Lupin, Lyall Lupin

Best Friend(s): Lily Potter, Hugo Granger-Weasley

Hogwarts House: Hufflepuff

Hair Colour: commonly Lavender (naturally brown)

Eye Colour: commonly Blue (naturally grey)

Quidditch Position: Chaser

Mia Potter

Full name: Euphemia Ivy Potter (James had wanted her middle name to be "Lily" but Lily didn't want that, so they chose a different plant instead)

Nickname(s): Mia

DOB: 19 July, 2000

Parents: James Potter & Lily Evans

Sibling(s): Harry Potter

Best Friend(s): Teddy Lupin, Victoire Weasley

Hogwarts House: Gryffindor

Hair Colour: Auburn

Eye Colour: Hazel

Quidditch Position: Chaser

James Potter

Full name: James Sirius Potter

Nickname(s): Jamie (he hates it), Prongs 2.0, Prongslet

DOB: 23 June, 2004

Parents: Harry Potter & Ginny Weasley

Sibling(s): Albus Potter, Lily Potter

Best Friend(s): Fred Weasley II, Roxanne Weasley, Louis Weasley

Hogwarts House: Gryffindor

Hair Colour: Black

Eye Colour: Brown

Quidditch Position: Chaser

Albus Potter

Full name: Albus Severus Potter

Nickname(s): Al (stops using it after he starts Hogwarts)

DOB: 31 August, 2006

Parents: Harry Potter & Ginny Weasley

Sibling(s): James Potter, Lily Potter

Best Friend(s): Rose Granger-Weasley, (since age 11) Scorpius Malfoy

Hogwarts House: Slytherin

Hair Colour: Black

Eye Colour: Green

Quidditch Position: N/A

Lily Potter

Full name: Lily Luna Potter

Nickname(s): Lils, Little Lily

DOB: 7 July, 2008

Parents: Harry Potter & Ginny Weasley

Sibling(s): James Potter, Albus Potter

Best Friend(s): Hugo Granger-Weasley, Ellie Lupin

Hogwarts House: Gyffindor

Hair Colour: Auburn

Eye Colour: Brown

Quidditch Position: Seeker

So, that's all the children featured in this oneshot as I see them. So, that's how they're portrayed in this.