"The Christmas House" will feature Bennett and Brad Harder as gay dads-to-be. The film is slated for a Nov. 22 release.
Two brides tied the knot in "Wedding Every Weekend," which aired less than a year after the network faced backlash for pulling LGBTQ-inclusive ads.
"Diversity and inclusion is a top priority for us," a spokesperson for the cable network said, days after its announced holiday lineup was met with criticism.
The “We Need a Little Christmas” marathon, which kicks off Friday, features 27 Hallmark holiday films.
The exec's departure came weeks after the company sparked a national outcry for removing a commercial depicting a same-sex wedding.
The network has sparked controversy over its since-rescinded decision to kill ads depicting a same-sex wedding.
“We are truly sorry for the hurt and disappointment this has caused," the company's CEO said Sunday.
The network is facing backlash over its decision not to air commercials that show a lesbian couple kissing.
The move triggered calls to "boycott Hallmark" on Twitter.
The network is launching its holiday romance programming almost a week before Halloween.