Actors who have portrayed Munkustrap have included Harry Groener, Gary Martin, Bryan Batt, John Partridge, Robert Amirante, Jack Rebaldi, Rob Marshall, Jeffry Denman, Tug Watson (CATS Worldwide Tour) and Ian Laskowski.
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Michael Gruber, an alumnus of the Broadway production, was chosen to play Munkustrap in the 1998 Cats movie.
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He is also the protector and second in command of the cats, after patriarch Old Deuteronomy; and directs them in the "Awefull Battle of the Pekes and Pollicles".