Included with the 3A DVD set was a promotional calendar purported to list all the characters' birthdays. This information is not only apocrypha, some of it we know is flat out wrong. Lydia's birthday is in March. We know because we watch her have her birthday on screen during the Worm Moon. Given that such an obvious detail was missed when putting this list together, it does not appear that anyone was consulted when the marketing team made this calendar.

Still, it is included here as a point of curiosity.

Sheriff Stilinski - Janurary 19th

Danny - Feburary 9th

Isaac Lahey - Feburary 27th

Stiles Stilinski - June 6th

Melissa McCall - July 8th

Scott McCall - September 16th

Ethan & Aiden - September 30th

Allison Argent - October 16th

Peter Hale - October 27th

Lydia Martin - November 22nd 

Derek Hale - December 25th