Lorraine Thomson started her career as a dancer, studying with Gweneth Lloyd and Betty Oliphant. Ms. Thomson was the first dancer hired by CBC Television and one of the three chorus girls on The Big Revue variety show. During the 1950s, she danced on all the major Variety shows, including Wayne & Shuster, The Barris Beat, The Denny Vaughan Show, and Showtime where she danced as Robert Goulet sang. She was also a choreographer for Juliette.

As her career progressed, Ms. Thomson turned from dancing to interviewing. A frequent guest on current affairs programs such as Open House, Tabloid, 701 and Front Page Challenge, in 1972 she was hired as a story producer on Front Page Challenge where she continued to work for 18 years. During this time she also hosted the television show, V.I.P., for 10 years. In all, Ms. Thomson recorded some 4000 interview for television programs such as, The Weaker (?) Sex, What is Truth, and V.I.P., as well as the radio program, Audio.

In addition, Ms. Thomson has had a long and varied involvement with ACTRA. In 1972, she co–founded the ACTRA Awards to celebrate the best in radio and television, and produced their awards show with CBC Television from 1972 to 1980. She has served on the ACTRA Board as a member, as the national treasurer and as the vice–president. In 1982, she was elected the first female governor of the ACTRA Fraternal Benefit Society.

As the Vice–President of ACTRA, she was the highest ranking woman in an Arts Union in Canada and for International Women's Year in 1975, Ms. Thomson represented Canada at the international meetings of the Federation of International Artists.

In 1981, she was nominated for the ACTRA award for Best Host Television for her work on V.I.P. In 1982, she was nominated for the ACTRA award for Best Host Radio for her work on Four to Six, on CBC Radio. In 1988, she was nominated for a Gemini award for Best Variety Program for her work as producer/writer on Gordon Pinsent Sings Those Hollywood Songs.

In 1989, she was appointed to the Federal Immigration and Refugee Board to judge refugee claims, a position she held for five years.

With the support of the AFBS, Ms. Thomson created its Oral History Project to preserve and celebrate the history of the broadcast industry and she is one of the founding Directors of the Canadian Broadcast Museum Foundation.

Ms. Thomson has two children and three grandchildren, and is married to Knowlton Nash.