The father of Bones' baby is Booth.
The popular television series "Bones" follows the relationship between the brilliant forensic anthropologist Temperance Brennan, nicknamed "Bones", and FBI Special Agent Seeley Booth. Throughout the series, their relationship evolves from professional partners to a romantic couple, culminating in their marriage and the birth of their son, Christopher Brennan Booth.
Booth is the father of Bones' baby.