The TV star and his wife Mandy Steckelberg welcomed daughter Abbey Ray into the world on Wednesday (15Sep10).
The Big Love star and his wife picked the name because they're both huge Beatles fans and love the Fab Four's Abbey Road album.
Fabian is awestruck after witnessing his partner go through the wonders of labour. He tells People.com, "Being a father for the first time is fantastic. My love and admiration for what women can do has gone up 1,000 per cent."