Bonar Bain

Bonar Stewart Bain (born February 4, 1923 – February 18, 2005) was a Canadian actor. He was the identical twin brother of actor Conrad Bain, who starred in Diff'rent Strokes as Phillip Drummond. He once played a fictional “evil” twin to Conrad (“Hank Bain”) in an episode of "SCTV". He also portrayed Arthur's (Conrad Bain) twin brother Arnold on "Maude". 
Bain was born on February 4, 1923 in Lethbridge, Alberta, Canada to Jean Agnes Young and to Stafford Harrison Bain. He was married to Vella Bain until his death in 2005. Bain died on February 18, 2005 in Edmonton, Alberta, Canada, from cancer, aged 82.