The couple welcomed Marley Rae McCall Friday, and "she came out fighting the nurses!," McCall said in an Instagram post.
In another Instagram post, McCall said he "never knew I could fall in love again," and commented that the baby has Marcille's eyes.
Marcille and McCall announced they were expecting their first child together in August.
"Being able to bring a life into the world is every woman's dream but for me it's more than just a dream it is a magical, mystical journey which I get to share with this amazing man," the model said at the time. "Kevin is the only man who I would share this moment in life with."