Holt and Joblon also share 4-year-old son James and 3-year-old daughter Elle.
ET spoke to Holt at the premiere of the pair's new Peacock series, 'Based on a True Story.'
The 'Vampire Diaries' star is already mom to 1-year-old son James.
The actress and her husband already share a 1-year-old son, James.
The 'Originals' star's son, James, celebrated his birthday earlier in the week.
The former 'Originals' actress shared the news on her Instagram on Friday.
The actress was convinced she knew the gender of her baby, but a balloon pop proved otherwise!
The happy news comes months after the 'Originals' star revealed that she had suffered a miscarriage.
This blonde bombshell is off the market!
The actress announced the news with a PDA-packed snapshot showing off her shiny new ring.