He is known for his portrayal of Rory Regan / Ragman in a recurring role in the fifth season of Arrow.

[4][5] He started his career as a child actor at the Stratford Shakespeare Festival,[6] and has since appeared on the Canadian television series Train 48[7] and Rideau Hall.

[8] On stage, Dinicol has appeared in Antony and Cleopatra, The Merry Wives of Windsor, Waiting for Godot,[9] and Richard III at the Stratford Festival, and The Needfire at the Royal Alexandra Theatre in Toronto.

He also performed in the 1996 recording of Waiting for Godot for the Canadian Broadcasting Corporation.

His most recent performance was as the second male lead in Paul Gross's Passchendaele released in 2008.