She was noted as a character actress who played genteel heroines in films such as Rebecca of Sunnybrook Farm (1917).

[1] Lubin's studio rejected a scenario that Eddy wrote at age 17, "but decided to capitalize on her face",[2] using her in vamp roles in "lurid melodramas".

Other films in which the actress participated include The March Hare (1921), The Dark Angel, Camille, Quality Street, The Divine Lady (1929) and the first Our Gang talkie Small Talk (1929).

[1] Eddy thrived on playing varied characters and said "Italian women, French, Turkish, girls of the Bowery, kitchenmaids — they're all in the day's work".

[4] Eddy died of heart failure on January 27, 1990, at the Episcopal Home in Alhambra, California at age 92.