David Macniven was born in Dunfermline, Scotland, and spent his childhood in Kingston and Peterborough, Ontario. He has resided in Toronto since 1995 and currently resides in East York with his daughter and son.
David holds an Honours BA in History from Huron College at the University of Western Ontario and a Theatre Arts Diploma from Studio 58, the professional theatre arts training program of Langara College in Vancouver.
As an actor, David has performed in various forms of media, including theatre, television, and film, across Canada and in the United States. His notable theatre credits include "The Oresteia," "Bathhouse Suite," "Benchmarks," "Burying Michael," "Measure for Measure," "An American Without Tears," "The PeaceLine," "Non Sequitur," "Catering Queen," and "bittergirl." He has also appeared in numerous film and television projects, including "Unrivalled," "Murdoch Mysteries," "Lost Girl," "Reaction Stick," "Ham & Cheese," "How to Lose A Guy in 10 Days," and "Welcome to Mooseport."
David has also ventured into writing and directing, creating the one-person show "Public Re(ve)lations" and the scripted improv series "Hollywood North" with his company Acme Theatrical Productions in Vancouver. He has also co-written and starred in the short film "The Proposal" and has been involved in the development of several other projects, including the mini-series "Home Front" with his writing-producing partner Todd Dulmage.
In addition to his work in the arts, David is deeply involved in volunteer service-work, serving as an elected member of ACTRA's governing council since 2000 and currently holding the position of Vice President of Finance. He is also a director on the board of the Creative Arts Saving and Credit Union and has been the President of the Board of Equity Showcase Theatre since 2008, overseeing the company's re-launch and 50th anniversary celebration.