They say for everyone, there is another in the world who looks, sounds and acts just like them.

They are called doppelgangers and we see instances of them everywhere, particularly among celebrities of every stripe.

Now, in a lot of cases, the unbeknownst twins are usually on the up-and-up. A stand-up guy/girl with an equally stand-up guy girl lookalike. Think Ed Sheeran and Rupert Grint. Or Roger Federer and Quentin Tarantino. Pretty cool likenesses, we think.

On the flip side of the coin, however, are celebrities who resemble bad dudes. The one that caught our eye, courtesy of the folks at Deadspin, was Utah Jazz coach Quin Snyder. Deadspin asked “What does Quin Snyder look like?” Our answer: like the shape-shifting Terminator played by Hollywood heavy Robert Patrick.

Uncanny, it is.

Therefore, with Snyder/Terminator twins in mind, we found 10 sports figures who have an evil twin in the celebrity world.

10. Michael Ballack And Matt Damon (circa The Departed)

Matt Damon doesn’t always play bad guys, but when he does, wow. The man who brought good guys Jason Bourne and Private Ryan to life has also played the baddy of baddies, dirty cop Colin Sullivan in “The Departed.” Retired German footballer Michael Ballack wasn’t near as duplicitous as his evil twin but his early life growing up in the Russian-occupied East German town of Chemnitz (then known as Karl-Marx-Stadt) was probably as interesting as Sullivan’s upbringing in South Boston. Both Ballack and Sullivan rose through the ranks to become very good at their chosen professions, though we’re sure that when Ballack talked, not many people got whacked because of it.

9. David Luiz And Sideshow Bob

David Luiz was a mere toddler when Robert Underdunk Terwilliger, Jr., Ph.D. — aka Sideshow Bob — made his debut on the Simpsons in 1990. Sideshow, voiced by Kelsey Grammer, has been a recurring menace on the hit comedy show, having gone to prison for framing Krusty the Klown and later trying to kill Bart after some elaborately hatched plot. Luiz, though a very thorough lookalike, is not nearly as homicidal or full of himself, but he has been a recurring character on many a football pitch, from Portuguese side Benfica, to Chelsea, Paris Saint-Germain and back to Chelsea again. The Brazilian national, however, has not hid the fact that Chelsea’s haters often refer to him as “Sideshow Bob” and he revels in it.

8. David Ortiz And Esther Rolle

OK, Esther Rolle, famous for her role as Florida Evans on the 1970s hit comedy “Good Times” (as well as a character on Maude) was hardly villainous. But, Esther could easily have been David Ortiz twin sister. Florida Evans’ most dastardly deed may have been to call J.J. Evans’ (Jimmie Walker) out for acting like a scene-stealing doofus. As for Ortiz, he too was a loveable longtime character in Boston, finally hanging them up in 2016 after a 20-season Hall of Fame worthy career. He and the late Rolle also share a Caribbean heritage, as Ortiz was born in Santo Domingo, Dominican Republic and Rolle was born to Bahamian immigrants in Pompano Beach, Fla.

7. Tim Tebow And Marcus Mumford

Let’s face it, compared to pious Christian football player-turned baseballer Tim Tebow, just about everyone is evil. And he shares an uncanny resemblance to fellow multiple purpose celebrity, singer/songwriter/producer Marcus Mumford of Mumford & Sons fame. To a straight-laced buy like Tebow, a musician like Mumford who sings the “Devil’s music” like the Blues and maybe has a beer or two after a show is about as evil as he can handle. Otherwise, they are both about the same age (born in 1987) and have tried their hand at more than one thing to keep their face in the news and their autographs in demand. Tebow is currently riding the buses in the low, low minor leagues for the New York Mets after hanging up his football cleats a little while ago. Mumford is also frequenting tour buses as his band is currently touring in the Pacific Northwest.

6. Jake Peavy And Jeremy Renner

Actor Jeremy Renner, like Matt Damon, has swung the pendulum with his characters from playing good guys in “The Hurt Locker” and Hawkeye in “The Avengers” to morally obtuse badasses in American Hustle (Mayor Polito) and James “Gem” Coughlin in “The Town.” Cy Young winner Jake Peavy’s only sin was to have his character questioned in 2008 when still images from a video feed appeared to show a dirty brown substance on his fingers while he was pitching a complete game, two-hit shutout for the San Diego Padres. It was nothing but “dirt and rosin” according to his manager, Bud Black and the controversy went no further. Jeremy Renner’s doppelganger is currently a free agent after spending the 2016 season with the San Francisco Giants. Renner will next appear in the soon-to-be released “Wind River” and has four other films, including another Avengers movie, in various stages of production.

5. Wayne Rooney And Flea

They are over two decades apart, age-wise, but bear an uncanny resemblance to each other. And in Rooney’s case, he might just be as evil as long-time Red Hot Chili Peppers’ bassist and actor Michael Peter “Flea” Balzary, maybe even more so. Flea, who in real life is a pretty decent human being and philanthropist, got a pseudo-rep for being a touch evil by appearing on an album cover with nothing but a sock hiding his unmentionables and for portraying “Needles” in the “Back To The Future” franchise. As for his lookalike Rooney, the English football superstar has been known as much for scoring big goals on the pitch as for soliciting prostitutes and getting into scuffles on the field with the likes of Cristiano Ronaldo.

4. Luis Scola And Russell Brand

Luis Scola is a family man and a pretty darned good basketball player who gets to live the jet-set life of a NBA star. Though, he might even be a little envious of actor/writer/comedian/political activist and generally quirky doppelganger Russell Brand. The fiery comic was married to Katy Perry and has been able to act the buffoon/minor villain as loopy musician Aldous Snow in the films “Forgetting Sarah Marshall” and “Get Him To The Greek.” Scola, a native of Argentina, has bounced around the NBA a bit since playing his first five seasons with Houston. In the last five campaigns, the big power forward with the good “flow” has played for four different clubs including Phoenix, Indiana, Toronto and lately Brooklyn. Brand, in the mean time, will once again voice bad dude Dr. Nefario in “Despicable Me 3.”

3. Jon Gruden And Chucky

Sure, we’ve teamed the looks of a well-known football coach to a homicidal special effects-made doll, but the resemblance is too close to pass up. John Gruden, when yelling and carrying on, bears more than a striking resemblance to “Chucky” of the “Child’s Play” franchise that has yielded six sequels, including the campy Bride of Chucky and Seed of Chucky. The horribly disfigured and totally lunatic doll has been voiced by Brad Dourif, who knows a thing or two about playing a villain. Gruden, during his tenure as a NFL head coach, was known to blow his stack when not pleased with elements of his team’s play or how the zebras were calling a game, though he fell short of whipping out a butcher knife and murdering someone.

2. Stan Van Gundy And Ron Jeremy

One is known for using his head to draw up plays and get his basketball teams to perform. The other is an actor who has is known for using more than just his head to perform in erotic films and then lampooning himself in mainstream films. Stan Van Gundy and X-rated film star turned “serious” actor Ron Jeremy bear more than a passing resemblance to each other, so much so that Jeremy wouldn’t look out of place doing Van Gundy’s job behind the Detroit Pistons bench, while Van Gundy, oh, never mind. Jeremy, who has starred in such diverse fare as “Debbie Does Dallas II” and the soon-to-be-released “Nuclear Zombies From Area 51”, is still a very busy guy who has been in front of the camera for 40 years. Van Gundy has been at his chosen craft nearly as long, starting with a stint as assistant coach at the University of Vermont to his current position as bench boss in Detroit.

1. Dan Marino And David Hasselhof

Hall of Fame quarterback Dan Marino and actor/cheeseburger-on-the-floor eating David Hasselhof share more than just their looks. They have both been featured on The Simpsons. Hasselhof and his likeness were featured in an episode where Lisa says her first words, they being “Momma, David Hasselhof and Homer.” Marino had a guest starring role in the The Simpsons in an episode entitled “Sunday, Cruddy Sunday.” Hasselhof, other than his defining role in Baywatch, has been a very busy man, appearing in everything from the ultra-campy “Sharknado” series to Robot Chicken and a role as Zardu Hasslefrau in the Guardians of the Galaxy Vol. 2. Marino has kept himself busy helping open small town pizzerias and having a consultant’s role with the Miami Dolphins.