
10Hallmark films
across 9 rated films
Mostly standard issue
Best reviewed
Most recent
Tammy Gillis is the reliable supporting hand Hallmark's mystery wing keeps reaching for. Across ten films since 2015 she has never top-billed, and that is the point: she shows up to round out the cast and let the leads chase the clues. The mystery slate is where you will find her most, usually in a small town rather than under fake snow, and notably not a single Christmas title in the bunch. Her strongest showing is Aurora Teagarden Mysteries: A Game of Cat and Mouse from 2019, which at 7.1 sits above her 6.5 average, with Poisoned in Paradise and Deadly Deed close behind at 6.7 each. She plays it straight, no winking at the camera. No fixed co-star, no signature pairing, just a steady character actor who slots into whatever case the season serves up.
Tammy Gillis is a Canadian actress who works on television and film projects across the country.
Across 10 films, Tammy frequently plays a teacher and is usually set in small towns.
10
10 Hallmark movies over 10 years.
Roughly 1.0 a year, every year.

Tammy’s most frequent on-screen partner is Catherine Lough Haggquist, with 2 films together.
The corners of the Hallmark universe Tammy keeps turning up in. Each one is a full ranked guide.
A quick look at Tammy’s Hallmark run — headshot and the posters fans know best.
Where else you might recognise Tammy from — notable roles outside the Hallmark catalogue.
The cast and crew Tammy keeps ending up on set with — the regular faces you’ll recognise from one film to the next.
Average 6.5 across 9 rated movies — each dot is one film.
Tammy’s filmography, credits and ratings are compiled from IMDb, TMDB and Wikipedia, then checked and tidied by the Talking Hallmark team. Last updated August 2026.
Catalogue curated by Alanna of Talking Hallmark. About the project
Talking Hallmark
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