K. K. Raina is an Indian film, television and theatre character actor and award-winning script writer, who is best known for his roles as Juror #8 in the 1986 film Ek Ruka Hua Faisla, a remake of 12 Angry Men, and Byomkesh Bakshi's associate Ajit Kumar Banerji in the 1993 Doordarshan detective series Byomkesh Bakshi. Raina won the Filmfare Award for Best Dialogue in 1998 for the Rajkumar Santoshi film China Gate.

Life and career
Raina was born in a Kashmiri family in Srinagar, Jammu and Kashmir, India. Raina is an alumnus of the National School of Drama, graduating college in 1976. He portrayed Manohar J. Pherwani in the Sony LIV series Scam 1992.