Donnie Wahlberg revealed if wife Jenny McCarthy - or brother Mark Wahlberg - could appear in future episodes of his Blue Bloods spinoff Boston Blue. "Jenny and I have discussed it. We've all discussed what she could possibly do on the show," Wahlberg, 56, exclusively told Us Weekly. "What most people don't know is that she was offered a part on Blue Bloods when we first started dating for an episode and we decided it was best not to do it. We didn't want to distract the audience with that.