Actor and singer Bobby Darin was cast in the second episode as "Honeyboy Jones". That same week Darin became famous with his version of the song, "Mack the Knife" Prior to being cast as Opie Taylor on The Andy Griffith Show, child actorRon Howard played "Walker", a little boy temporarily left in Hennesey's care in the 1959 episode "The Baby Sitter". Gary Hunley, another child actor, appeared in the same episode. Charles Bronson, en route to a long film career, was cast twice as Lt. Cmdr. Steve Ogrodowski, a Navy intelligence officer. Don Rickles was cast in the 1961 episode "Professional Sailor" as CPO Ernie Schmidt. From 1976 to 1978, Rickles played the lead with the same rank in the NBC military sitcom, C.P.O. Sharkey. Bandleader Les Brown and His Band of Renown and comedian Soupy Sales appeared in separate episodes as themselves. Other guest stars:
Raymond Bailey
Roy Barcroft
Gertrude Berg
Ken Berry
Bill Bixby
Jolene Brand
Charles Bronson
Jean Byron
Jack Carter
Jack Cassidy
Phyllis Coates
Ellen Corby
Yvonne Craig
Robert Culp
Sammy Davis, Jr.
Donna Douglas
James Franciscus
Robert Foulk
Bob Hastings
Marty Ingels
Vivi Janiss
Arch Johnson
Helen Kleeb
Ruta Lee
Jimmy Lydon
Doug McClure
Jaye P. Morgan
Ed Nelson
J. Pat O'Malley
Sue Randall
Stafford Repp
Chris Robinson
Mickey Rooney
Walter Sande
William Schallert
Johnny Seven
Olan Soule
Larry Storch
Dick Wessel
Grace Lee Whitney
Meg Wyllie
Production notes
The series theme tune by Sonny Burke was a jazzy hornpipe played by tuba and piccolo. Hennesey was also innovative for being the first series to employ what has since become a standard device in television: beginning the dialog and action of each episode during opening credits. Cooper starred in, produced, and directed the series, drawing upon his real-life experience as a World War II Navy veteran and his continuing service for many years as an officer in the United States Naval Reserve. He was a former child actor who starred in the Our Gang comedies of the early 1930s and then moved into feature films. Beginning in 1960, scriptwriter Richard Baer wrote thirty-eight of Hennesey's episodes, which earned him an Emmy nomination. For the series finale, "I, Thee Wed", broadcast on May 7, 1962, characters Chick and Martha were married following their series-long romance.