“Gotham’s” population just went up by one: Ben McKenzie and Morena Baccarin have a baby girl.

The Fox series stars welcomed daughter Frances on March 2, Baccarin’s rep confirmed to The Times on Friday.

If you’re wondering w all those names are coming from, ’s the breakdown: Frances is “The O.C.” alum’s mom’s first name, and Setta is Baccarin’s mother’s maiden name.

Schenkkan is McKenzie’s real last name; he uses his middle name as his surname professionally.

It’s the first child for McKenzie and the second for Baccarin, who were outed as a couple – a couple having a baby together – just after the Primetime Emmy Awards in September.

Coincidentally, their “Gotham” characters are also having a baby in the Batman prequel series.

Thanks to post-production editing, her baby bump was hidden – at least until she walked the Emmys red carpet that year.

He’s seeking joint custody of Julius, spousal support and legal fees, and alleges that Baccarin got pregnant with Frances while they were still together, TMZ reported.

Baby on the way for Adam Levine, wife Behati Prinsloo, reports say.

Morena Baccarin