Pierre Lynn de Lappe, also known as Peter Brown, was an American actor. He portrayed Deputy Johnny McKay opposite John Russell as Marshal Dan Troop in the 1958 to 1962 ABC-Warner Brothers western television series Lawman and Texas Ranger Chad Cooper on NBC's Laredo from 1965 to 1967.

John Lawrence Russell was an American film and television actor, most noted for his starring role as Marshal Dan Troop in the ABC western television series Lawman from 1958 to 1962 and his lead role as international adventurer Tim Kelly in the syndicated TV series Soldiers of Fortune from 1955 to 1957.