Some of his British film roles include Tamahine, The Haunted House of Horror, Cromwell, Adventures of a Private Eye, and The Legend of the 7 Golden Vampires as Leyland Van Helsing.

After being asked to go to New Zealand for a telethon and subsequently taken back to host his own show, Stewart ended up being asked to relocate where he became involved with such soaps as The Young Doctors as a villainous character trying to silence a blind patient who had overheard his criminal acts, and Sons and Daughters as the villainous doctor Ross Newman.

He played one of the supporting roles in the rock series Sweet and Sour for ABC; co-hosted Good Morning Sydney with Maureen Duval.

He briefly co-produced weekly magazine program Midweek Live for DDQ TV in Toowoomba with presenter Craig Berkman in early 1990.

[citation needed] After two brief earlier marriages (the second to magazine fashion editor, Fiona Partridge), he married Roberta "Bertie" Daler in 2012 and they had one daughter.