Stevens co-starred in the Australian TV comedy series The Mavis Bramston Show and appeared in films such as Carry On Cruising, Brassed Off, and The Parent Trap.

He co-narrated Noggin the Nog with Oliver Postgate and lent his voice to various children's series and animated films.

[3] He appeared in many television comedy series in regular roles, including May to December, Goodnight Sweetheart and A J Wentworth, BA.

He played roles in The Avengers, Dick and the Duchess, Minder, Rumpole of the Bailey, Hetty Wainthropp Investigates, and as Sir Andrew Aguecheek in the 1980 BBC Television Shakespeare series presentation of Twelfth Night.

In 1965–66 Stevens co-starred in the pioneering Australian TV satirical comedy series The Mavis Bramston Show, where he replaced founding cast member Gordon Chater.