“Parents reach out to me like, ‘This is my daughter. She just graduated from college. These are her grades. This was her minor,’ ” the 28-year-old told Page Six. “And the kid of the mom doesn’t even know their mom is trying to set them up. They’re really embarrassed.”

Meanwhile, his own mom won over his “Murder” co-stars with her cooking. “My mom’s a chef. I brought her on set with me and she made food for everybody,” he said. After that, “Viola [Davis] — all she did was ask when is my mom coming back to cook again.”

Flynn released his new single, “Keep Me in Mind,” last month and has been working on music since the show wrapped in February. Fans had been expecting a two-hour episode to end the series, but Flynn said, “It’s 43 minutes long. I haven’t seen it yet. I want to have this live experience with everybody else.”