Not wishing to cause you a heart mummer but I have known this for many years.
From the guardian.co.uk
In earlier times, in English, such a performer was referred to as a mummer.
From the en.wikipedia.org
In Medieval Europe, early forms of mime such as mummer plays and later dumbshows evolved.
From the en.wikipedia.org
Johnny, traditionally played by the youngest mummer in the group, first asks for food and then more urgently for money.
From the en.wikipedia.org
More examples
Mime: an actor who communicates entirely by gesture and facial expression
MUMmer is a bioinformatics software system for sequence alignment. It is based on the suffix tree data structure and is one of the fastest and most efficient systems available for this task, enabling it to be applied to very long sequences. ...
Mummer is the sixth album by the group XTC which was released on 30 August 1983. It reached No. 51 on the UK album chart and No. 145 on the U.S. Billboard album charts.
Mummers' Plays (also known as mumming) are seasonal folk plays performed by troupes of actors known as mummers or guisers (or by local names such as rhymers, pace-eggers, soulers, tipteerers, galoshins, guysers, and so on), originally from England (see wrenboys), but later in other parts of the ...
(The Mummers) The Mummers are a band based in the English seaside town of Brighton, centred around London-born singer/songwriter Raissa Khan-Panni and composer Mark Horwood before the latter's suicide in September 2009. ...
Also called themselves Jennies or Fools. Someone ridiculously disguised who participates in various group activities during Christmas such as visiting local homes. Please see further explanation under "Mummering, mumming."
Anyone associated with the Mummers Parade and its member brigades.
Noun - 1. masked or costumed merrymaker, especially at a festival 2. a) one who acts or plays in a pantomime b) an actor
A supervillain who is a master of disguise. Unlike most of his enemies, Mummer was able to escape from him thanks to his disguises.