Steve Langtry

Jenny Perrin

Rudolph Toller

Clayton

Capt. Ethan Perrin

Louis Schaber

Bruno Bloch

Batiste

Charles Langtry

Celeste Eltree [Chs. 1-4, 7]

Jug Jenks [Chs. 1-4, 7]

Chief Engineer [Chs. 1-4, 7]

Hermann Einreich [Chs. 1-2]

Craig Cassard [Ch. 1]

Dr. Hartman [Ch. 1]

Jean Duval [Ch. 5]

Police Chief F. E. Dumont [Chs. 6-8, 11]

Sawyer, the garage owner [Chs. 5, 10]

The Singer-Guitarist [Chs. 1-3, 13]