#21 Mark Wahlberg and John Cena

Mark Wahlberg earned global recognition with his roles in classic movies such as The Italian Job, The Departed, and The Fighter to name a few. Wahlberg has also worked as a rapper, akin to his WWE doppelganger John Cena.
Similarly, John Cena is a huge star in the professional wrestling realm--with his Hollywood career now blossoming as well, courtesy his work in movies such as Trainwreck and Blockers.
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Similarities:
Mark Wahlberg stands at 5'8" tall, whereas WWE stalwart John Cena is listed as 6'1". Wahlberg is about 6 years older than his WWE lookalike.
Both rappers bear a rather strange resemblance to one another--especially when you consider the fact that not many people can claim to look like the living, breathing Superman that is "Super-Cena". Wahlberg's eyes, nose and mouth are eerily identical to that of Cena.
Regardless, a notable difference between the pair is that Cena's head is a tad larger than that of Wahlberg--However, in regards to body shape and overall appearance, these two could very well pass off as brothers in a movie down the line.