The two became good friends and upon arrival back into the United States, Skelton offered O'Connor an announcing gig on his Raleigh Cigarette Program in 1945.

During his announcing career, O'Connor worked some of the biggest names in radio including Art Linkletter, Loretta Young, Dennis Day, Rudy Vallée and Danny Thomas.

O'Connor finally settled at WGN in Chicago where he served as the announcer for Don McNeill's Breakfast Club and The First Nighter Program.

Shortly after he finished his engagement at WGN, O'Connor met comedian Red Skelton who had just been discharged from a Virginia army hospital and was soon about to return to The Raleigh Cigarette Program after an 18-month hiatus.

[8] O'Connor also announced Glamour Manor, a musical variety program starring Cliff Arquette (Charley Weaver), during the 1945-46 radio season on ABC.

O'Connor was a member of the Catholic Church, the Screen Actors Guild and the American Federation of Television and Radio Artists, where he served on the national board for several years.