G. H. Mulcaster (27 Junie 1891 – 19 Januarie 1964) was 'n Engelse akteur. Hy was bekend vir sy rolle in die rolprente The River House Mystery (1935) en Kathy's Love Affair (1947), en in die televisiereeks The Gay Cavalier (1957).
- 1918: God Bless Our Red, White and Blue
- 1920: The Wife Whom God Forgot
- 1921: Wild Heather
- 1923: Mist in the Valley
- 1923: The Pipes of Pan
- 1925: The Squire of Long Hadley
- 1925: A Girl of London
- 1926: The Wonderful Wooing
- 1929: Sacrifice
- 1931: Inquest
- 1933: Purse Strings
- 1935: The River House Mystery
- 1937: The Five Pound Man
- 1938: Lily of Laguna
- 1945: For You Alone
- 1947: Kathy's Love Affair