Little is known about Thelma Lou. Barney met Thelma Lou at Wilton Blair's funeral in 1960. In another episode, she is mentioned to have attended Mayberry Union High, graduating in the same class with Barney and Andy Taylor. Aside from her romance with Barney, she was given very little character development during the series' run. She is generally portrayed as a sweet-natured, somewhat touchy, caring person who genuinely has an understanding of Barney, despite his unbecoming antics and personality problems. She sings in the choir. She is apparently self-sufficient; her occupation is never revealed despite references to a never-seen "office", yet she lives in a roomy and well-decorated house of her own. Like most Mayberry ladies, she is an accomplished cook, being especially celebrated for her "cashew fudge". Thelma Lou's last name is never given on the show, though in her last appearance on the series she is married to a man named Gerald Whitfield. Actress Betty Lynn explained that "I didn't really need one, until about the fourth year, when Andy had to introduce me to a couple. And he turned to me during rehearsals, and Bob Sweeney was directing, and he said, 'Well, what's your last name? Thelma Lou what?' And I said, 'No. I've been "Thelma Lou" all this time; I don't want a last name.... All you have to do is say, "This is Thelma Lou." You don't need a last name.' So, he said, 'Okay.' And that was it." Prior to the arrival of Helen Crump in Mayberry, Lydia Crosswaithe is introduced as one of Thelma Lou's friends. Lydia's extremely odd personality doomed an effort by Barney and "Thel" to arrange a date and possible romantic match with Andy.
Barney and Thelma Lou
The stability of Barney and Thelma Lou's relationship is questionable. Barney dates other women besides Thelma Lou. The two call it Splitsville in one episode when Barney pays a bit too much attention to an attractive newcomer to Mayberry. Despite their ups and downs, Thelma Lou stated that Barney was the man she wanted to marry and be the father of her children, and Barney once told Thelma Lou, "You're the only one I ever gave a hoot for." He also tells her "You're the cat's". A running gag on the show involved Barney and Thelma Lou spending a "quiet evening together" and somebody walking in on them to find Barney's hair mussed and lipstick prints all over his face. Barney and Thelma Lou went their separate ways when Barney left Mayberry to join the Raleighpolice force. In the sixth-season episode, "The Return of Barney Fife", Barney returns to Mayberry for a high-school reunion. Intent on getting back with Thelma Lou, Barney discovers she has been married six weeks to a man named Gerald Whitfield. Betty Lynn recounted that she so strongly objected to her character being married to anyone other than Barney that while performing in the episode, she pretended that Whitfield was actually a co-worker who she paid to pretend to be her husband so that she wouldn't "be left in a lurch" with Barney. This episode is Thelma Lou's final appearance on the series. Thelma Lou appears in the 1986 television reunion movie Return to Mayberry. Her marriage in 1965 is revealed to have lasted only a year before ending in divorce. Barney finally marries Thelma Lou.
''Andy Griffith Show'' appearances
The following is a list of Andy Griffith Show episodes featuring Thelma Lou. ;Season one
