From the Pilot Script of Teen Wolf

colethewolf:

• Stiles’ dad is introduced as “Deputy Stilinski”
• Lydia Martin is named “Lydia Sayers”
• Lydia is a junior
• Derek is 19 years old
• Stiles remembers seeing Derek get pulled out of class to receive the news of his family’s death 10 years ago
• Derek’s flash yellow in the script, not blue like in the show
• Stiles and Scott have a best friend named “Harley”
• The script ends after Scott finds out that Derek drove Allison back home from the party