• The Cold War Swap (1966)
• Cast a Yellow Shadow (1967)
• The Seersucker Whipsaw (1967)
• Singapore Wink (1969)
• The Fools in Town are on Our Side (1970)
• The Backup Men (1971)
• The Porkchoppers (1972)
• If You Can't Be Good (1973)
• The Money Harvest (1975)
• Yellow Dog Contract (1976)
• Chinaman's Chance (1978)
• The Eighth Dwarf (1979)
• The Mordida Man (1981)
• Missionary Stew (1983)
• Briarpatch (1984)
• Out On The Rim (1987)
• The Fourth Durango (1989)
• Twilight at Mac's Place (1990)
• Voodoo, Ltd (1992)
• Ah, Treachery! (1994)

As Oliver Bleeck

• The Brass Go-Between (1969)
• Protocol for a Kidnapping (1971)
• The Procane Chronicle (1971)
• The Highbinders (1973)
• No Questions Asked (1976)

• Spies, Thumbsuckers, Etc. (1989)

• Cyril (called "Mac") McCorkle, pub owner in Bonn and Washington, DC, and his business partner/friend Michael Padillo, spy, are in The Cold War Swap, Cast a Yellow Shadow, The Backup Men, and Twilight at Mac's Place.
• Artie Wu and Quincy Durant, con men/adventurers, and their associate Otherguy Overby are in Chinaman's Chance, Out on the Rim, Voodoo, Ltd. Booth Stallings, expert on terrorism, and Georgia Blue, cashiered Secret Service agent, join them in the latter two.
• Howard Mott, a Washington Lawyer, has cameo roles or is mentioned in several novels.
• Ione Gamble, an actress, is a central character in "Voodoo, Ltd." and is mentioned in "Ah, Treachery!".
• Draper Haere, political rainmaker, is a central character in Missionary Stew and is mentioned in Ah, Treachery.
• Minor Jackson and Nicolae Ploscaru, central characters in The Eighth Dwarf, are mentioned in Ah, Treachery.