Stephanie Costa is a Canadian actress, best known for her portrayal of Sage Aiello on Freeform's comedy-drama series The Bold Type. She is a graduate of Dawson College's Professional Theatre Program, as well as an alumna of the Stella Adler Studio in New York City and the Art of Acting Studio in Los Angeles. Most recently, she was a participant in the 2019 CBC Actors Conservatory Residence at the Canadian Film Centre in Toronto.