Howard Duff Sergeant Sam Stone Actor Ben Alexander Desk Sergeant Dan Briggs Actor Dennis Cole Detective Jim Briggs Actor Frank Maxwell Captain Frank Nye Actor Martin Milner Thomas Glynn Guest Star Mark Lenard George Venter Guest Star Vic Tayback Tony Oliver Guest Star Jason Wingreen Collier Guest Star John S. Ragin Dr. Sutherland Guest Star Harry Raybould Hank Guest Star Ben Aliza Lab Technician Guest Star Rosanna Huffman Nurse Guest Star Daniel Bruce Writer Seymour Robbie Director