Wagstaff's television guest roles in the 1990s included appearances in "G.P.", "Rafferty's Rules", "A Country Practice" and "All Saints". He often appeared on "The Midday Show" and "Good Morning Australia". He appeared on most of Channel 7 Perth's telethon and live broadcasts as well. The late 1980s and the 1990s saw Wagstaff on stage with Sydney seasons and subsequent tours of "Noises Off", "Black Comedy", "The Winslow Boy", "Lend Me A Tenor" and Gershwin's musical "Crazy For You". He also appeared in the role of Old Cookson in the theatrical production of "Pan" at the Capitol Theatre, Sydney. Cameron Mackintosh’s production of "Oliver!", had Wagstaff returning to the stage in the role of Mr. Brownlow.