Misc: in what year was ufo formed?

Questions

In 1920 Werner---------- , actor (Col. Klink of "Hogan's Heroes"), born.?

In 1923 Marcel---------- , mime, born.?

In 1930 Stephen---------- , composer, lyricist (West Side Story, A Little Night Music), born.?

In 1931 William---------- , actor (Star Trek, T.J. Hooker), author (Tek War), born.?

In 1948 Andrew---------- , composer (Evita, Cats, J.C. Superstar), born.?