Ian Harding celebrated his 29th birthday this week, and he found himself flooded with lovely messages from his fellow Pretty Little Liars [1] costars! You might have already seen Julian Morris's unbearably handsome post [2], but Lucy Hale, Ashley Benson, Shay Mitchell, and more also posted their own well-wishes on their various accounts. Keep reading to see all the other messages, and then check out even more PLL cast snaps we love [3].

Shay Mitchell

"Happy birthday to this amazing human being who I am so proud to call my good friend... @ianmharding I love you sooo much!!! You're the OLDER annoying brother I never had! [cake emoji] [balloon emoji]"

Ashley Benson

"The one I torture the most @ianmharding [donut emoji] happy bday u little [poop emoji]"

Lucy Hale

"I'll never forget the first time I met this guy and how he has made my life so much more interesting for the past 6 years. He truly is a ball of energy with a beautiful heart to match. Ian, I adore ya my friend. Thanks for (literally) dancing & singing at 5am call times and sometimes making me want to punch you, but at the end of the day I am so grateful for your infectious attitude. Happy birthday buddy! @ianmharding"

Tyler Blackburn

"HBD to my main dude @ianmharding [explosion emoji] [firecracker emoji]"

Keegan Allen

"Ian. I love you. So grateful you're in my life. Many happy returns. And puppies...lots of puppies on your birthday [cake emoji]"

Creator I. Marlene King

"Repost from one year ago today. Happy birthday @ianmharding. You are a true gentleman yet still manage to be funny as hell."