He has starred in the movies The Happiest Millionaire, The One and Only, Genuine, Original Family Band, The Concorde… Airport ‘79, The Squeeze, and Edward Scissorhands. In 2012 he starred as Henry in the Off Broadway Revival of The Fantasticks and in 2013 he starred as the Wizard in the North American tour of Wicked. Davidson was nominated for a Laurel Award in 1968 for Male New Face.