Television:
* Scot Squad (2014-2022): She plays PC Jane "Janie" Thomson, a main character in this popular Scottish police comedy.
* Gary: Tank Commander (2011-2015): She had a recurring role as a character named "Karen" in this sketch show.
* Scot Squad: Special (2019): Reprising her role as PC Jane "Janie" Thomson.
* The Last Leg (2015): She appeared in this topical comedy show.
* Two Doors Down (2016): She played the character "Brenda" in one episode of this sitcom.
* River City (2002-2022): She has appeared in various roles in this long-running Scottish soap opera.
Film:
* Sunshine on Leith (2013): She had a supporting role in this musical film.
Other:
* She has also appeared in stage productions, including "The Vagina Monologues" and "The Lion, the Witch, and the Wardrobe".
This list is not exhaustive, as Molly Weir has had a number of other smaller roles in television and film.