Is Bull the father of Izzy's baby?
Matthew Barrera
Updated on April 19, 2026
Yara Martinez as Isabella "Izzy" Colón (recurring seasons 1–4; seasons 5–6), Benny's sister who is also Bull's ex-wife. Bull and Izzy have a tryst while her second marriage is falling apart, which leads to Izzy getting pregnant and later giving birth to a daughter, Astrid.
Does Bull and Izzy have a baby?
Izzy was slated as a recurring character until she and Bull welcomed their daughter and Yara Martinez joined the show full-time. Although it took quite a while for Bull and Izzy to choose a name for their baby girl, they ultimately decided on Astrid.Who does Bull get pregnant?
Isabella ColónDuring this time she became pregnant, but had a miscarriage. Jason and Isabella dealt with this in different ways and it ended their relationship. In the episode Too Perfect, Jason takes the case for Isabella's company to trial after not having seen her for three years.