: James Lafferty (Nathan) and Bethany Joy Lenz (Haley) are the only cast members to appear in every single season premiere of the show.
: The episode ends on an ominous note with someone watching Haley’s house from the shadows, setting a dark tone for the final season. Production Details & Trivia Original Air Date : 11 January 2012. [S9E1] Know This, We've Noticed
You can find more detailed reviews and episode breakdowns on platforms like IMDb and the One Tree Hill Wiki . : James Lafferty (Nathan) and Bethany Joy Lenz
"One Tree Hill" Know This, We've Noticed (TV Episode 2012) - IMDb [S9E1] Know This, We've Noticed