No, Hitchcock did not make a cameo appearance in, nor did he direct, Witness for the Prosecution. The movie was directed by Billy Wilder. You may be thinking of The Paradine Case, a different courtroom drama that was directed by Alfred Hitchcock.
It appears this is one Hitchcock film in which he does not appear.
Alfred Hitchcock .
Alfred Hitchcock can be seen at Victoria Station, wearing a black coat and smoking a cigarette, near the end of the film.
Family Plot (1976) was the last film directed by Alfred Hitchcock.
Alfred Hitchcock
It appears this is one Hitchcock film in which he does not appear.
Alfred Hitchcock .
Alfred Hitchcock can be seen at Victoria Station, wearing a black coat and smoking a cigarette, near the end of the film.
Alfred Hitchcock is a/an Film director film producer screenwriter film editor actor
Hitchcock is the surname of famous film director Alfred Hitchcock.
Lifeboat (1944)
film director.
The Birds II
Family Plot (1976) was the last film directed by Alfred Hitchcock.
Film director Alfred Hitchcock had one daughter, Patricia Hitchcock. Information about her can be found at the IMDb, using the link below.
A generation of film makers.
Alfred Hitchcock