J. R. Fernandes, known professionally as, J. R. Fithna, was a 20th-century former Goan theatre actor, singer, composer, and female impersonator who worked on the Konkani stage during the golden phase of tiatr.

[a][2] Fernandes made his initial foray onto the theatrical stage in a tiatr (a form of Goan musical theatre) produced by Saib Rocha.

In this production, Fernandes assumed the role of a lady in Rocha's Konkani adaptation of Shakespeare's Romeo and Juliet, alongside Miss Carlota and J. P. Souzalin as the main protagonists.

Playwright and politician Tomazinho Cardozo noted Fernandes's ability to emulate the demeanor and speech patterns of a woman, which earned him praise from the audience.

Among his accomplishments are his appearances in J. P. Souzalin's productions, namely Bhott Ailolo Pomburpechea Festak (Hindu priest's arrival at Pomburpa's feast) and Tiklem Cheddum (The girl born after three consecutive boys), which garnered him recognition.

Equally deserving of mention are his portrayals in C. Alvares' works, such as Are Puzadkara, Mhoji Vonim (My Sister-in-law), and Mog Cazar ani Doth (Love, Marriage and Dowry).

[4] Konkani playwright and politician Tomazinho Cardozo attested to Fernandes natural aptitude for the art of tiatr, evident from his early childhood.

[1] Writer Fausto V. da Costa states, Fernandes' physical appearance lent itself beautifully to these characters, exuding grace and charm.

Fernandes displayed an ability to seamlessly transition into various roles, effortlessly embodying princesses, wicked girls, sweethearts, strong-willed village belles, simple ladies, and even portraying aunts with equal ease.