Peter Nigel Terry was an English stage, film, and television actor, typically in historical and period roles. He played Prince John in Anthony Harvey's film The Lion in Winter (1968) and King Arthur in John Boorman's Excalibur (1981).

The Lion in Winter is a 1968 historical drama centred on Henry II of England and his attempt to establish a line of succession during a family gathering at Christmas 1183. His efforts unleash both political and personal turmoil among his estranged wife Eleanor of Aquitaine, their three surviving sons, the French king, and the king's half-sister Alais, who is Henry's mistress. The film stars Peter O'Toole and Katharine Hepburn, was directed by Anthony Harvey, written by James Goldman, and produced by Joseph E. Levine, Jane C. Nusbaum, and Martin Poll. Actors John Castle, Anthony Hopkins, Jane Merrow, Timothy Dalton and Nigel Terry appear in support.