Toumpas, Viney and Jones will wear the red and blue for the first time against Port Adelaide at the MCG on Easter Sunday.
Toumpas, a classy midfielder from Woodville-West Torrens, was one of the most sought after youngsters in last year’s talent pool. He was claimed at No.4 overall.
Viney was a steal at No.26 in the draft, having been acquired after his father, club great Todd, played 233 matches for the Demons from 1987-99.
Jones’ story is one of perseverance, given the 25-year-old played suburban football, in the AFLQ and VFL before being drafted last year.
The Demons will announce their round one side from 6:20 pm on Thursday.