Ovechkin, who has 14 goals in his past seven games, didn't have a shot on goal until his first goal, which came after Oshie was moved to a wing with Ovechkin and center Nicklas Backstrom.
"Obviously, it was a tough couple periods for our line, but when [Oshie] jumped in you can see we started to create some moments out there, and the first one was a pretty pass and I got lucky it bounced off my stick and goes in," Ovechkin said.
Carter, skating out from behind the Capitals net, deflected a pass from Doughty to give the Kings a 2-1 lead at 11:33 of the third. Doughty, who missed the previous three games with an injury, passed Rob Blake for most points by a defenseman in Kings history (495).
"Growing up you never even think you're going to make the NHL, so I've never thought of this moment in my whole life until recently, just kind of being aware of it," Doughty said. "But [Rob] was one of my favorite defensemen growing up, he's a Hall of Famer, he's our [general manager] right now and to pass him ... it's just such an honor."
Carter gave the Kings a 1-0 lead at 15:03 with a wrist shot from the left circle.