HomePeople Biography and filmographyFrederick Ko Vert Biography unavailable on TMDB. Movies (6)TV shows (0) Movies (6) The Unchastened Woman1925 Chasing the Chaser1925 · The Detective The Wizard of Oz1925 · Phantom of the Basket, Costume Design The Isle of Love1922 · Lyn Brook I Am Guilty1921 · The Dancer (as Frederic De Kovert) An Adventuress1920 · Lyn Brook TV shows (0) No credits available.