lewis frederick ayres iii (december 28, 1908 – december 30, 1996) was an american actor whose film and television career spanned 65 years. he is best known for starring as german soldier paul bäumer in the film "all quiet on the western front" (1930) and for playing dr. kildare in nine movies. he was nominated for an academy award for his performance in "johnny belinda" (1948).