A survey conducted of women who are clients at the California sperm bank Cryobank named Affleck and Grunberg as the stars they would most prefer their children to resemble.
The sperm bank has created a new programme in which moms-to-be can choose their sperm donor based on which celebrity they look like.
Affleck, who starred in the film He’s Just Not That Into You, and Grunberg of the television series Heroes, were the top picks of the women, followed by Paul Walker, Scott Caan, Bradley Cooper and Gerard Butler.