There were actually three kings in the 2016 animated hit "Trolls" -- the king of the Trolls, King Peppy, was voiced by Jeffrey Tambor, while the two kings of the villainous Bergens were voiced by John Cleese and Christopher Mintz-Plasse.

All three men are certainly funny enough to be mistaken for the late comedic legend Robin Williams, but it's likely Tambor you're thinking of, with his equally baritone and somewhat nervous-sounding voice.

These days, Tambor is best known as the star of the critically beloved comedy-drama "Transparent," or as the ethically challenged patriarch of the Bluth family in "Arrested Development." However, his career stretches back to the late '70s (his first screen role was a bit part in an episode of "Kojak," if you're interested).

He's done dozens of voice roles in that time as well -- recently and notably, he's voiced characters in the 2010 Disney hit "Tangled" and the 2009 hit "Monsters vs. Aliens" by Disney's main animation studio competitor, DreamWorks.

As for the other two kings in "Trolls," King Gristle Sr., voiced by "Monty Python" cast member Cleese, and his son and successor, King Gristle Jr., played by Mintz-Plasse, star of the 2007 comedy "Superbad," they're a little less likely to be mistaken for Williams -- Mintz-Plasse's voice is a little too high and squeaky, and Cleese's voice is a little too British.

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