Gacha Plienwithi (เกชา เปลี่ยนวิถี, also spelled Kecha Plianvithee; 1 April 1926 – 28 July 2021) was a senior Thai actor, best remembered for playing the godfather in the film Operation Bangkok [th] in 1966.

Gacha Plienwithi, whose real name and surname was Gecha Danmatam, was born on Monday, 1 April 1926 in Ban Pong District, Ratchaburi Province.

As for the male protagonist of the film, this movie has been changed to a former famous Thai boxer in the late 1940s-early 1950s, Chuchai Phrakhanchai, to act instead.

After being released from imprisonment Gacha went to work at a stone mill in Ratchaburi province his hometown.

while traveling to visit his nephew in Uthai Thani Province therefore admitted to Uthai Thani Hospital on Wednesday, 14 July 2021, with Chada Thaiseth, member of the Uthai Thani Provincial House of Representatives Bhumjaithai Party who has the honor of being Gacha's nephew be in charge expenses[7] even sickness from COVID-19 improved until the doctor prepared to let him go back to recuperate at home but he died of sudden old age[8] on Wednesday, 28 July 2022, at the age of 95.