Marshall is the husband of , father of , and brother-in-law to and . Marshall started as Ryle’s friend in high school, but he eventually won over Allysa’s affection with his carefree, goofy, and positive persona. As an adult, Marshall became unexpectedly wealthy after selling a phone app to a technology company. Marshall’s easygoing personality continues to complement Allysa’s emphatic, particular nature, especially when the couple struggles with fertility issues. Lily appreciates these same characteristics after joining the family. When Marshall finds out about Ryle’s abusive behavior, he protects Lily as she and Ryle work through the process of separating and ending their marriage.