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Star Prestige Review

Why Detective DeMarcus King From Blue Bloods Looks So Familiar

Author

Daniel Johnson

Updated on March 06, 2026

After appearing in a total of five movies in 2007, Flex Alexander's feature film work dropped off significantly. The next chapter of his career, however, would see him become a somewhat frequent TV guest star, starting with separate roles in two episodes of "CSI: Miami" that aired in 2007 and 2010. It was after this second episode that he was a part of the "Blue Bloods" pilot. Moving forward, he also worked on single episodes of shows like "Masters of Sex," "Lucifer," "In the Cut," "Station 19," "Grey's Anatomy," and "Kenan."

His longest-running dramatic TV role during this time was as George on "Mixed-ish," the two-season spinoff of ABC's hit sitcom "Black-ish." George is protagonist Alicia Johnson's (Tika Sumpter) neighbor, who visits her alongside his wife Vivica (Kelly Jenrette) in Season 1, Episode 17. As new Black residents of a predominately white neighborhood, they consort with Alicia about feeling like outsiders. He then returns for a couple of Season 2 episodes that aired in 2021. For much of his decades-long film and TV acting career, Alexander was a young up-and-comer, but as George on "Mixed-ish" he plays someone older and wiser than many of the characters that came to define his body of work previously.