Karaikal Arunachalam Thangavelu popularly known as "Danaal Thangavelu", was an Indian actor and comedian popular in the 1950s to 1970s. Not known for physical, acrobatic comedy like his contemporaries J. P. Chandrababu and Nagesh, Thangavelu's humour is recognised for his impeccable timing in verbal agility and the characteristic twang of his delivery. He exclusively acted in Tamil films.

Karaikal is a city of the Indian Union Territory of Puducherry. It is the administrative headquarters of the Karaikal District and the second most populated city in the Union Territory after Pondicherry. Located on the Coromandel Coast of Bay of Bengal in South India, it is a coastal enclave and is surrounded by the state of Tamil Nadu in the southern region of Indian peninsula.