Richard Seymour Cawthorne (born 3 December 1976) is an Australian actor of theatre, film and television.

His credits include Catching Milat, Fat Tony & Co, Bikie Wars: Brothers in Arms, The Straits, East West 101, Rush, Noise, Neighbours, Underbelly: Squizzy, Wolf Creek and Killing Time,[1] for which he won the 2012 Australian Academy of Cinema and Television Arts (AACTA).

In 2015, Richard was appointed Ambassador to the National Theatre in Melbourne.

His mother, Zelda,[3] was a journalist for the South China Morning Post, and his father, Russell,[4] was a Marketing Executive for the Hong Kong–based film company, Golden Harvest Studios.

Cawthorne is a first cousin of Australian Labor Minister Martin Pakula.