Tiera Skovbye (/ˈskoʊbi/;[1] born May 6, 1995[2][3]) is a Canadian actress. She is known for starring in…Tiera Skovbye (/ˈskoʊbi/;[1] born May 6, 1995[2][3]) is a Canadian actress. She is known for starring in television films such as her role playing Elizabeth Berkley in Lifetime's The Unauthorized Saved by the Bell Story, and for her recurring roles as Polly Cooper on The CW series Riverdale and as Robin on the ABC television series Once Upon a Time.