Jack Haley - This former host of the Jack Haley Wonder Show later played the Tin Man in the The Wizard of Oz. the Wonder Show was famous for featuring the then not-so-famous Lucille Ball. Jack also hosted the Log Cabin Jamboree on the NBC Red Network.
Carl Stewart Hamblen - He was one of radios early singing cowboys. His first stretch on air started in 1936 on KFYO-AM in Abilene, TX. He later sang as Cowboy Joe on KFI-AM, and with the Beverly Hillbillies, on KMPC in 1930. He performed with several groups under different shows on KFWB into the late 1930s. He found god in 1949, quit drinking and started "The Cowboy Church of the Air" which ran until 1952.
Bill Handel - He won his star only in 2009. He hosts a morning show on KFI-AM and a legal advice program on Premier Networks presently. He has been notable lately only for making racist remarks on air.
Arlene Harris - She made her name as a comic actress on the radio program "The Chatterbox." But she also put in some time on CBS as Mummy Higgins, playing the mother of Baby Snooks with Fanny Brice.
Phil Harris - In 1946 he started doing wholesome family skits with his wife Alice Faye on The Fitch Bandwagon show. In 1949 the show was became The Phil Harris-Alice Faye Show. Afterward he moved onto bit parts in TV and cartoon voice over gigs.
Bill Hay - Starting in 1926 he announced for the Amos 'n' Andy show, moving with them from WGN to WMAQ. He actually got his start on KFKX in 1922.
George Hayes - He is known for his work in westerns acting alongside William Boyd, Roy Rogers, Gene Autry or Wild Bill Elliott. He also hosted "Melody Ranch" a WWII-era country music program on AFRS. He also guested on the Andrews Sisters show in 1944 and in the supporting cast of the Roy Rogers Show 1946-1947 on Mutual in the role he was typecast for.
Helen Hayes - After a good showing on Lux Radio Theater she got her program the "Helen Hayes Theatre" which ran 1935 - 1936. After which she did a year on the O'Neill Cycle on NBC Blue. She was on the Electric Theater on CBS in 1948 and in 1949 she turned up again on "This Is Broadway" a radio talent show on CBS.
Johnny Hayes - A real deal DJ from KRTH-FM. He started at WAKE in 1961,and after a few stops, KRLA in 1965 where he stayed for 25 years. (Some sources say 27.) Today he is alive, well and retired.
Dick Haymes - His recording career takes front and center but he was also a performer on Club Fifteen with the Andrews Sisters. His show "Here's To Romance"ran on the NBC Blue network in 1943. He followed that with The Dick Haymes Show running 1944 to 1948. Then "The Carnation Show" in 1950, NBC Bandstand 1956-1957... you get the drift.
Jim Healy - A sports announcer who was on KLAC from 1961 to 1965, then KFWB in 1969. He spent some time on TV but came back and was on KLAC from 1973 to 1982 and KMPC from 1984 to 1994. He also hosted Here's Healy on KBIG-FM back in the 1950s. .
Chick Hearn - He was the play-by-play announcer for the Los Angeles Lakers which have been carried on network radio via KLAC-AM since the beginning of time.
*Corrections from KoHoSo
Horace Heidt - He was a popular radio bandleader on both NBC and CBS. He did dozens of programs: Horace Heidt's Alemite Brigadeers, Pot O' Gold, Tums Treasure Chest, The American Way, Captain Dobbsie's Ship of Joy, The Horace Heidt Youth Opportunity Program the list goes on.
Jean Hersholt - He of the unpronounceable surname had two big roles in his career. He spent 7 years starring on "Dr. Christian" and playing the character Dr. John Luke. The rest of his career appears to have been in TV.
George Hicks - A war journalist who was first on NBC then NBC Blue. He actually recorded the D-Day Normandy Invasion. It was broadcast on NBC and the BBC. That's pretty damn amazing.
Hildegarde - Also known as Hildegarde Loretta Sell a slightly risque cabaret singer. She had two radio shows. Her NBC radio program "Raleigh Room" ran in the 1940s and AFRS carried Hildegarde's Radio Room for at least a couple episodes in 1945.
John Hodiak - most of his career was on stage and screen but he also played the role of the comic strip character Li'l Abner on radio. It ran in 1939 and 1940 on NBC.
Portland Hoffa - Married to Fred Allen it's no surprise she performed as both comedian and vocalist on his programs. her character was so unpopular that sales execs begged Allen to drop her but he stood firm. In 1949 he left the program. The performed together on The Big Show 1950–52, and she finally started working without Fred in 1954 usually as a mystery guest on TV quiz shows.
Bob Hope - Bob Hope was inducted into the Radio Hall of Fame in 1990 while he was still alive. He first appeared on the show "The Intimate Revue" in 1935, followed by the Woodbury Soap Hour in 1937, and the Pepsodent Show in 1938. His film career took off and then those USO shows... etc. Guinness Book rates him as the most awarded entertainer in history.
Warren Hull - He started out on Soap Operas like "The Gibson Family" which ran on NBC in 1934. Following a short film career he became a radio announcer on The Hit Parade and Vox Pop in the 1940s. He then hosted the game show "Strike It Rich" on NBC radio 1949 - 1957.
Frazier Hunt - This respected newscaster and war correspondent was on WLS-AM on every Monday, Wednesday and Saturday at 6:45 PM. Frazier Hunt and the News was on NBC in the early 1940s. Probably best known for smuggling out a copy of the Versailles Peace Treaty in order to scoop the story.
Marlin Hurt - He did the Hometown Incorporated show in 1940, Fred Brady Show in 1943 and subbed on the The Bob Burns Show on NBC. But the big fame came from his role on the Fibber McGee and Molly program in 1944. He played the role of Beulah, a black woman. In 1945, Beulah was spun off into it's own radio show "The Marlin Hurt and Beulah Show" which ran 1945 to 1954. Thankfully on TV ABC finally cast a black woman to play the part of Beulah.
Ted Husing - Primarily known as a sportscaster in the 1930s, he was also a CBS announcer on "March of Time" and an for "George Burns and Gracie Allen. In 1946, he moved from CBS to WHN-AM to try his hand at DJ-ing. It was a hit and the Ted Husing Bandstand ran from 1946 to 1954. He moved on to TV after that.
Michael Jackson - Born in England he became a DJ in South Africa. He came to the US in 1958 and did a program on KYA. At KEWB he phased out the record flipping and phased in a talk format. He made stops at KNX,and KHJ, then put in 32 years at KABC starting in 1966. He came back to KABC in 2009 and is still there.
Jaime Jarrin - The Dogers moved to LA in 1958 and KWKW-AM picked up the Spanish language broadcasting rights for the games. Jarrin was the news and sports director, and he became the announcer from 1962 to 1984.
Al Jolson - A radio star from it's earliest days he was on NBC's The Dodge Victory Hour and his own shows included Presenting Al Jolson, Kraft Music Hall, Jolson Sings Again, Shell Chateau and a litany of others.
Spike Jones - After a good performance on The Bob Burns Show, he got his own radio show, The Chase and Sanborn program on NBC. Then he moved over to CBS 1947 to 1949 for his show The Spotlight Revue, which was renamed later The Spike Jones Show. But really, his recording career is where it's at.
Ellen K- Inexplicably Ryan Seacrest's sidekick has a star on the Hollywood walk of fame. She used to be a co-host with Rick Dees on KIIS at least as early as 1995. She also had a Top 30 Countdown show on Premier networks that was cancelled in 2002.
Casey Kasem - See previous post here.
Danny Kaye - Most of his fame is from film and music but he also starred in a radio program "The Danny Kaye Show" which was carried on the CBS network from1945–1946. He also did a set of shows for AFRS in WWII and in 1963 he repeated the recipe with a TV version of the show.
Sammy Kaye - He started out on the Mutual network in 1937 doing short sets. Then starting in 1940 had a show called "Sensation and Swing" on NBC. He also was on the Old Gold program for two seasons starting in 1943 . Starting in 1944 he launched the Sunday Serenade, a program title he'd recycle often. He continued to do short run programs and short form music programs into the mid 1950s.
John B. Kennedy - An American radio correspondent whose radio debut was in 1924 on WJZ-AM on the Collier Hour which ran until 1931. Afterward NBC had him host "The Magic Key" from 1934 to 1939 and "The People’s Rally" which ran 1938 - 1939.
John Reed King - Famous as a game show host on radio and television he ended up doing morning news at KDKA in the 1960s and KGO-TV in the 1970s. The peak of his popularity was probably the radio show "Missus Goes A-Shopping" on CBS. He also announced on the soap opera "Our Gal Sunday" and the infamous Duffy's Tavern among others.
Wayne King - Nick named the "Waltz king" his longest stretch was 1931 to 1940 on NBC doing random gigs usually as the "Wayne King Program" sponsored by Lady Esther cosmetics. He later subbed for Jack Benny and Jimmy Durante.
Raymond Knight - Originally an ad writer for NBC, he was asked to write a comedy program in 1929 and came up with "The Cuckoo Hour". He later did the children's program "Wheatenaville Sketches." He later wrote for Broadway productions.
Kay Kyser - You can't forget "Kay Kyser's Kollege of Musical Knowledge". It started in 1937 on WGN-AM in Chicago and then moved to NBC. It continued to air until 1949. He retired from broadcasting in the 1950s and was inducted into the Radio Hall of Fame in 1990.
Art Laboe - See previous post here.
Jim Ladd - Possibly the last surviving DJ of note from the Freeform era, he started at KNAC in 1969, but earned his stripes doing a weeknight show on KLOS-FM starting in 1971. In 1974 he began 13 year stretch at KLOS that ended with in 1984. He was on KMET until 1987 when it flipped to KTWV, smooth jazz. In 1988 he moved to KMPC (later KEDG) staying until it flipped in 1989 to Español. He DJ'd at KLOS again in the 90s getting booted with
*Corrections from KoHoSo
Arthur Lake - Mr. Lake played the part of Dagwood Bumstead in 28 different "Blondie" films, 1 TV show and the radio series on NBC Blue. It ran 1944 to 1950. He also portrayed the character in a couple guest appearances.
Dorothy Lamour - While most of her career was in film she also had her own fifteen-minute weekly musical program on NBC Radio in 1935. She also guested on the Rudy Vallee radio show, The Chase and Sanborn Hour and The Sealtest Variety Hour
Frances Langford - She got onto the Rudy Vallee by auditioning and became a regular starting in 1931.
From 1946 to 1951, she performed on The Bickersons and the Chase & Sandborn Show. She later replaced Judy Garland in Bob Hope's show.
Fulton Lewis II - See previous post here.
Art Linkletter - See previous post here.
Little Jack Little - He was a song plugger in Chicago who got lucky. He was a short man which a big orchestra on WABC-AM in the early 1930s. He did a lot of USO shows in WWII, and was a DJ on WEAM-AM starting in 1947.
Mary Livingston - She was a comedian in her own right, but also the wife and radio partner of comedy great Jack Benny. In 1932 she turned a bit part into a full-time rule. her stage fright kept her from beginning a major character, and she was large absent from the last season 1954-1955.
Al Lohman & Roger Barkley - They share a star because they shared a show, a highly rated morning drive program "The Lohman and Barkley Show" on KFI. It ran through most of the 1970s into the 1980s. Barkley quit the duo in 1986. They both have notable radio careers before and after they were a team.
Guy Lombardo - He was Dick Clark before Dick Clark. From 1929 to 1959 he and his band hosted a New Years Eve show at the Roosevelt Hotel in New York City live on NBC. From 1959 to 1976 the program continued with Lombardo at the Waldorf Astoria.Starting in the 1960s it was also aired on TV competing with that young upstart Mr. Clark.
Vincent Lopez - His first documented radio performance was in 1921 on WJZ-AM. He and his band continued to perform on air including a series called "Luncheon with Lopez" but it was in 1952 that he and Gloria Parker hosted a radio program on ABC broadcast from the Taft Hotel called "Shake the Maracas."
Phillips Lord - He started with a small singing show on WTIC-AM. Then became a successful as a radio script writer for NBC with "Sunday Evening at Seth Parker's" which actually ran 6 days a week from 1929-1939. He later created the show Gang Busters a huge hit that lasted from 1935 to 1957.