Adam MacDonald (born May 16, 1977) is a Canadian actor, writer, and director. He is known for portraying Josh MacIntosh on the CBC show Being Erica, Peter McGregor on Wild Roses, and Detective Steve Peck on Rookie Blue, and for his guest-starring roles in several other shows, including Murdoch Mysteries and Republic of Doyle.MacDonald's writing and directing work includes the horror films Backcountry (2014) and Pyewacket (2017), both of which premiered at the Toronto International Film Festival, and the third season of the anthology horror television series Slasher (2019).