O.S.S. (TV series)

O.S.S. was a Buckeye Productions and Associated Television co-produced wartime television drama series.
It ran for 26 half-hour monochrome episodes during the 1957–1958 season and was distributed by ITC Entertainment and networked in the United States by ABC.
The series followed the adventures of Frank Hawthorne, an agent with the American Office of Strategic Services, who operated behind Nazi lines in occupied France.
Main cast.
Guest stars included Lois Maxwell, Christopher Lee and "Doctor Who" villain Roger Delgado.
Production.
The pilot was shot in November 1956. The budget was around $1,200,000. The star was Australian actor Ron Randell.
Episode list.
This episode list is based on the airdate order on ABC, which appears to match the production order and the air-date order for the (unrelated) ABC Weekend TV in the UK.