It was Maggie who actually set up the reunion between Grant and Vanessa so they could finally meet on Chicago Med. Actress Marlyne, however, had a different, hilarious reaction to the newest conflict in Maggie’s life. She told TV Insider, “When I found out that Vanessa’s father was coming, I was like, ‘Sweet chalupa, why?’ But I always knew there was a possibility of a bond that was so rich.”
What we knew about Grant prior to his appearance was that he was an emergency department doctor at Gaffney Medical Center.
Source: https://www.distractify.com/p/maggie-ex-chicago-med