Federal Agent at Large

Dorothy Patrick

Solitare

Robert Rockwell

Dr. Ross Carrington

Kent Taylor

Mark Reed, aka Nick Ravel

Estelita Rodriguez

Lopita

Thurston Hall

'Big Bill' Dixon

Frank Puglia

Angelo 'Angel' Badillo

Roy Barcroft

Nels Berger

Denver Pyle

'Jumpy' Jordan

Jonathan Hale

James Goodwin

Sonia Darrin

Mildred

Robert Kent

Harry Monahan

Kenneth MacDonald

Captain

Frank McFarland

Duke Warren

John McGuire

Customs Officer