Aww, aren't they adorable? There's plenty of Twitter messages as well...
It’s the day the stars aligned and perfect Mandroid @JensenAckles was manufactured in Texas. Happy birthday best bot. Hope you have a fantastic year ahead taking over Hollywood once you’ve hung up the sleeveless plaid for the last time... lots of love Rx ❤️ pic.twitter.com/sd9NzlQZyV
— Ruth Connell ♛ (@RuthieConnell) March 1, 2020
Happy Birthday, Jensen! So grateful to know ya, Bud! This one’s on the house. #HappyBirthdayJensenAckles #SPNFamily pic.twitter.com/Mz4E5qVi4Q
— Billy Moran (@Billy_Moran) March 2, 2020
Happiest of birthdays to the one and only @JensenAckles . Happy to be your biggest cheerleader. And campaign manager.
— B R I A N A B U C K M A S T E R (@OfficialBrianaB) March 2, 2020
Love, Napoleon Dynamite ?? (vote for Pedro) pic.twitter.com/V7KdmeXaNj
Happy Birthday Jensen! #SPNFamilyForever @FangasmSPN @WinchesterBros @WinFamBusiness @JensenAckles @SuperWiki pic.twitter.com/Yaak9zAoMf
— SD (@shr2da1) March 1, 2020
@JensenAckles HBD, sir! pic.twitter.com/PVakCEmOKt
— Robbie Thompson (@rthompson1138) March 1, 2020
After 12 yrs of working with him, I can genuinely say I’ve become a superfan of his. Happy birthday, @JensenAckles. pic.twitter.com/0PrWbF6Kd8
— Misha Collins (@mishacollins) March 2, 2020
Take some pie or a sandwich for the road. Happy Birthday, @JensenAckles! pic.twitter.com/AR6gLwu0t9
— Supernatural (@cw_spn) March 1, 2020
Oh, remember the big guy's photo? Someone noticed...

Happy (Belated) Birthday Jensen! We hope it was a great one.