Alias: Walter Wright Williams, Walter Williams Wright, Robert Buchanan.
Presumably either American or British, Walter Williams was a character actor who spent his entire career in Italy, appearing in several Italian films as well as international productions shot in Italy. His earliest known roles date back to the early 1960s, at which point he went under the name Robert Buchanan, but as of the mid 60s, he went by Walter Williams. His most prominent roles were in La decima vittima (1965) and Dottor Jekyll e gentile signora (1979).
On the film Fräulein Doktor (1969) he is credited as a dialogue coach, and it's quite possible he also took on that job uncredited in other films.
- Esther and the King .... Hegai (credited as "Robert Buchanan")
1963 - Cleopatra .... Reveller (uncredited)
- La ragazza che sapeva troppo .... Dr. Alessi (credited as "Robert Buchanan")
- The Pink Panther .... Bartender (uncredited)
1964 - I due evasi di Sing Sing .... Boxing match commentator (credited)
1965 - La decima vittima .... Martin (credited)
1966 - Che notte ragazzi! .... Brown, the London lawyer (uncredited)
- I Spy (TV series) - season 2, ep. 9: "Bridge of Spies" .... Dr. Mattison (credited)
- Il grande colpo dei 7 uomini d'oro .... LBI agent (uncredited)
- La spiaggia .... Del Bono (uncredited)
1967 - Troppo per vivere... poco per morire .... Drunk (uncredited)
1968 - Diabolik .... Man in charge of the gold (uncredited)
- La pecora nera .... American party guest (uncredited)
1969 - Fräulein Doktor .... German general (uncredited)
- Monte Carlo or Bust! .... German customs inspector (credited)
1973 - Anastasia mio fratello .... Member of the Kefauver committee (uncredited)
1978 - L'importante è non farsi notare .... American intelligence agent (uncredited)
- Primo amore .... Lucio (uncredited)
- Top Secret (TV movie) .... Macaferri (credited)
1979 - Caro papà .... Rudolf (uncredited)
- Dottor Jekyll e gentile signora .... Top President of P.A.N.T.A.C. (credited as "Walter Wright Williams")
- Martin Eden (TV mini-series) .... Old revolutionary (credited as Walter "Williams Wright")
1980 - Sophia Loren: Her Own Story (TV movie) .... Expression teacher (uncredited)
1981 - Inchon! .... Officer at military briefing (uncredited)
- L'isola del gabbiano .... Optician (credited)
1985 - A.D. (TV mini-series) Ep. 1 .... Senator (uncredited)
- Kidnapped (TV mini-series, 1963) - ep.: "The man with red hair" as Andie Scougal (credited as "Robert Buchanan")