text: Jack Douglas (1927–2008) (8) joined the series with a cameo appearance in Matron, where he appears in one scene with a single line of dialogue. After an only slightly larger role in the following film Abroad, where he again plays his established Alf Ippititimus-type character, his roles increased in size and increasingly diverged from the familiar Alf performance. After his début Douglas appeared in all subsequent films in the original series, and was one of the few returners for Columbus. He also appeared in two of the four Carry On Christmas TV specials, and twelve episodes of the Carry On Laughing TV series.
  Terry Scott (1927–1994) (7) appeared briefly in the first film Sergeant and returned 10 years later when he played, among others, the put-upon husband (Camping), the barking sergeant (Up the Khyber) and lusty doctor (Matron).  Additionally, he appeared in two of the four Carry On Christmas TV specials. He also filmed scenes for At Your Convenience and Abroad, which were not used in the finished films.
  Regular cast roles
  Recurring cast members
  This section looks at actors who starred or had at least one significant supporting role in at least one Carry On film plus at least one other supporting role, and those actors who appeared in at least four or more films in small or supporting roles. Surviving cast members' names are in bold
  Michael Nightingale (1922–1999) (13 films) made more Carry On appearances than any other member of the supporting cast.  Out of these 13, four were uncredited appearances (Regardless, Don't Lose Your Head, Follow That Camel, and Girls).  His nine credited appearances were in Cabby, Jack, Cleo, Cowboy, Camping, Matron, Dick, England, and Emmanuelle.  He also appeared in two episodes of the Carry On Laughing TV series.