Toronto residents may have noticed a host of classic heroes, from Wonder Woman to Astro Boy to the Fantastic Four, are now protecting the city's streets. At least that's what many of the neighborhood watch signs insist.

According to CBC News, an artist calling himself Andrew Lamb has "hacked" as many as 70 of the signs, pasting over the familiar houses-with-eyeballs icons with the even more familiar figures from comic books, television and movies (Mr. Rogers, Cliff Huxtable and Dale Cooper, among them).

"I walked by and thought those signs would be much better with a superhero up there," he told CBC News. "The first one was a splash page — a common thing in comic books, a bunch of superheros popping out at you. Then came Batman and Robin, RoboCop, Beverly Hills Cop, and then it snowballed."

Lamb acknowledges his project is "technically illegal" -- he's received just two vandalism complaints -- but he doesn't believe it's "ethically or morally wrong."

You can see more photos of his handiwork below, and on Lamb's Instagram account.