Miriam Katherine McDonald (born July 26, 1987) is a Canadian actress best known for playing the lead role on the Canadian television series '.
McDonald was born in Oakville, Ontario to Silvia (née Pauksens), who is of Latvian descent, and John McDonald. She had an older sister Esther, who died from an eating disorder in 2013.
McDonald focused on acting, playing a role in the series, System Crash, in 1999. McDonald found a job as a voiceover actress after she was cast in 2001 in John Kricfalusi's series The Ripping Friends. She has done a total of 39 characters.
In 2001, she was cast as , daughter of Christine 'Spike' Nelson, in the CTV/The N drama ', a spin-off of the successful Degrassi series. She starred in the first nine series and three Degrassi television films. In 2016, she reprised the role for an episode in '. She was also cast as Emma Jackson in the successful CTV show, Agent Wars, alongside Christopher J. Alexander, who played the main character, Christian.
In 2004, she played Dawn Gensler in the Lifetime made-for-television movie She's Too Young. She also had a guest role on the Family Channel show Naturally, Sadie as Heidi.
In 2008, she played Danielle "Daisy" Brooks in the made-for-TV erotic-thriller movie, '.
In 2013, she played two roles in Lost Girl and also made an appearance in Orphan Black.
In 2018, McDonald appeared in Drake's music video for "I'm Upset", which took place during a Degrassi reunion.
McDonald is also a dancer and yoga instructor, and has worked as a real estate agent. Like her sister, McDonald also struggled with an eating disorder "in the beginning seasons" of Degrassi. She says Degrassi fans often relate the most to her character Emma's eating disorder episodes, which "were so hard for [her]" to film. Despite her sister's death, McDonald says she shares her perspective because "I know there are so many people that are dealing with it and don't realize how bad it can get and don't realize how good it can get if you can just conquer it."