NEW YORK (CBSNewYork) -- It's not easy being green.
Steve Whitmire took over as the voice of Kermit when Muppets founder Jim Henson died in 1990.
He was reportedly chosen by Henson's son, Brian.
There's no word why Whitmire is quitting or what will happen to his other characters including Rizzo the Rat and The Muppet Newsman.
Kermit will now be voiced by another Muppets actor, Matt Vogel.
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