OK, the question in the title might be a bit of a no-brainer for you Beverly Hills, 90210 fans still keeping up with the latest and greatest involving the show's cast.
But that should also make this picture taken over the weekend all the more exciting.
As for those reading who simply don't have a clue as to whose adorable little lady this is, well, you can still appreciate cuteness when you see it, right?
So who is the proud parent?
The actor was all smiles as he posed with his weeks-old daughter Mia while at the Britax Baby Buggy event in Sherman Oaks, Calif., on Saturday.
Ziering and his wife Erin welcomed their bundle of joy on April 25.
Sure, high school might be a few years away for Mia, but who better to teach her a thing or two when she gets there than Steve Sanders?!