Grock (born Charles Adrien Wettach;[1] 10 January 1880 – 14 July 1959) was a Swiss clown.

[5] This second act was developed with the aim of making the transition from circus to music hall stages, which were more lucrative.

Refining their performances according to audience response, Grock came to dominate the act, and they eventually split up.

By 1913, Grock's fame had spread, his act having developed into the mixture of pantomime and musical blunders for which he is now remembered.

[5] With the outbreak of World War I, he made Britain his base, remaining there until 1924, when he returned to continental Europe.