(Harry Potter and everyone in his year are 16 in this roleplay. That makes Ginny and Luna 15 and Fred and George 18. Fred and George are graduated but have come back to help with the situation. Also, for the sake of this roleplay hardly any of the events that happen during Harry's sixth year will happen in this roleplay.)

Harry Potter
(Taken by @Bernackim)

Ron Weasley

Hermione Granger
(Taken by @FxutureMrsMxalfoy)

Ginny Weasley
(Taken by @SonnyB03)

Neville Longbottom

Luna Lovegood {Taken by me}

Draco Malfoy (Taken by AGirlNamedEcho)

Fred and George Weasley (They are separate roles but I was too lazy to do separate gifs for them lol)

(Fred taken by RxseThxrns_13
George taken by AGirlNamedEcho)

Pansy Parkinson

(Taken by Jocelyn-Stark)

Dumbledore (Headmaster)
(Taken by scaledwarriior)

Professor McGonagall (Transfiguration)
(Taken by Bernackim)

Professor Snape (DADA)
(Taken by @Pink_CGI_Spoon)

Professor Slughorn (Potions)

If you would like a canon role that is not listed here please let me know.