Aaron Paul (43) has officially changed the name of his eight-month-old son. The little one is no longer called Casper Emerson Paul, but Ryden Caspian Paul.

The "Breaking Bad" star apparently submitted the documents for the name change in November. According to "TMZ" they have now allegedly been officially approved. The actor introduced his son to Ryden Caspian Paul in April on "The Tonight Show" with Jimmy Fallon (48).

Why the parents changed their mind afterwards - or why the birth certificate has a different name - is not known. However, the current name is inspired by the couple's favorite artist, Mark Ryden, as Paul's wife Lauren, 36, shared on Instagram with a picture of the little baby in April.

However, it is not the only name change in the Paul household: the actor has exchanged his real last name, Sturtevant, for his stage name Paul. His wife Lauren is now also called Paul by last name.

Aaron and Lauren Paul have been married since 2013 and have son Ryden Caspian and four-year-old daughter Story Annabelle.