Mr Arnold, who played Barney Crozier in the BBC detective drama, died aged 79 on 15 April at Lakeside Care Home in St Peter.
In January Mr Arnold appeared alongside his long-time friend and co-star John Nettles at the Jersey Museum for a reunion of extras who appeared in the hit TV show.
The event had been organised to launch Mr Arnold’s latest book ‘Anton Myst’ – a story based on the life of a young actor.