To celebrate "Reminders of Him," we had stars Maika Monroe, Tyriq Withers, and Rudy Pankow take a costar test to see how well they actually know each other. Do they know each other's favorite snacks? What about their first roles? Watch it all now on BuzzFeed Celeb YouTube! #RemindersofHim #MaikaMonroe #TyriqWithers #RudyPankow