He then re-appeared around two decades later in various Italian films made during the late 1970s and early-to-mid 1980s. His largest during this period were in two cheap science fiction films directed by Alfonso Brescia: Anno zero - guerra nello spazio (1977) and Battaglie negli spazi stellari (1978), in both of which he plays substantial supporting parts, though without being credited. He also plays notable but uncredited bit parts in several other productions around the same time.
At present, it is not known what he was up to from the latter half of the 1950s and until the late 1970s, or at which point he arrived in Italy, but there are presumably some more roles to be discovered from this period. Another possibility is that he came to Italy looking for acting roles in the late 1950s and then - like a lot of other Americans and Brits - ended up working mainly with English dubbing instead.
Unfortunately, his rather common name makes it difficult to find any info, and there are apparently quite a few actors named Craig Kelly out there. On IMDb, for example, Craig's credits have been lumped together with another Craig Kelly who was active in a couple of Dirty Harry movies and American TV series in the 1970s.
- The Furies .... Anaheim's son (credited)
- Zombies of the Stratosphere (12-part serial) .... Mr. Steele (credited)
- Commando Cody - Sky Marshal of the Universe (12-part serial) .... Mr. Henderson (credited)
- Kraft Television Theatre (TV series) - season 8, episode 12: "Account Rendered" .... Charles (credited?)
- Edge of Fury .... Chub (credited)
- Anno zero - guerra nello spazio .... Commander Armstrong (uncredited)
- Emanuelle - Perchè violenza alle donne .... Hotel receptionist (uncredited)
- Kleinhoff Hotel .... Hotel guest (uncredited)
- Battaglie negli spazi stellari .... The Commander (uncredited)
- Quel maledetto treno blindato .... Colonel Brenner (uncredited)
- Caro papà .... Man at airport (uncredited)
- Dottor Jekyll e gentile signora .... P.A.N.T.A.C. board member (uncredited)
- Return of the Saint (TV series) - episode 19: "The Murder Cartel" .... Party guest (uncredited)
- Siamo fatti così: aiuto! .... Professor (uncredited)
- Storie di ordinaria follia .... Office worker who grows vines (uncredited)
- La nouvelle malle des indes (TV mini-series) - episode 1 .... East India Company director (credited as Kelly Creia)
- I nuovi barbari .... Amos (uncredited)
- The Lonely Lady .... Spectator in the crowd (credited)
Some additional titles in which Craig is listed by online sources that I have been unable to find copies of.
- Kraft Television Theatre (TV Series) - season 1, episode 64: "Green Cars Go East" (1948)
- Project X (1949) .... Martin
- Racket Squad (TV Series) - season 2, episode 31: "The Case of the Cold Neck" (1952)
- The Unexpected (TV series) - season 1, episode 8: "Mardi Gras" (1952) .... Bill Larsen
- Playwrights '56 (TV series) - episode 1: "The Answer" (1955)