Allistar Gaskin was born in Moncton, New Brunswick. He began musical studies on euphonium at the age of 12 with his father, John Gaskin. Allistar attended Mount Allison University where he studied trombone with James G. Code, graduating with a Bachelor of Music Education in 1975 and then a Bachelor of Education in 1976. He completed a Master of Music in Performance on trombone — in 1978 — at the University of Regina, studying with Richard Raum.
As a student, Allistar was a member of the Jeunesses Musicales Orchestre Mondiale in 1976 and then for two seasons with the National Youth Orchestra of Canada — 1977/78. Allistar subsequently was made Stage Manager and Sound Recordist for the National Youth Orchestra during the 1979, 80 and 81 seasons.
As a performing professional, Allistar was a member of the Hong Kong Philharmonic Orchestra from 1980 - 1990. In addition, he has performed with the Hamilton Philharmonic Orchestra, the Kitchener - Waterloo Symphony Orchestra, the Buffalo Philharmonic Orchestra, the Toronto Symphony Orchestra, the National Ballet of Canada Orchestra, and the Canadian Opera Company Orchestra.
Allistar has been a member of numerous commercial theatre orchestras in Toronto including those for productions of: Miss Saigon, Phantom of the Opera, Lion King, Wicked, South Pacific, Chicago and Sweeney Todd. He also performed during eight seasons in musical productions at the Stratford Shakespearean Festival for productions such as Cabaret, West Side Story, Fiddler on the Roof and A Chorus Line.
Allistar Gaskin has certification with the Ontario College of Teachers and is active as an occasional teacher in the York Region District School Board.