Love After Marriage - Martha (Kim Hunter), twice-divorced and mother of young daughters, must choose between encouraging romance with Henry Fellows (James Daly), who is about to end his own 20+ year marriage, or facing the realities of what led to the failures of their respective marriages. Neva Patterson plays Henry's wife, Helen, and Eliane (not a typo) Nadeau plays their daughter, Laura. Harry Bellaver plays Charlie, brother of Helen.
The Divorcee - A recently divorced mother with a teenage son meets a recently divorced man. Cast: Nancy Malone (Ruth), Joe Campanella (Mike), and Johnny Desmond (character unknown).
The Age-Old Problem - Barney Fowler (Arthur O'Connell), a widower who loses his salesman job after 30 years, when his company goes bankrupt, moves into his married daughter's home. Finding adjustment to his daughter's way of life too difficult, and recognizing a growing resentment of his place in her family, he seeks a way of dignity and purpose of life he once knew. In his desperate search, he approaches a widowed friend, Mae Willis (Frances Fuller) and makes a desperate plea for marriage.
The Unfaithful Wife - Irene Wallace (Barbara Barrie) and her husband, Sid (Simon Oakland), encounter the crises and problems that can lead to infidelity.
The Married Bachelor - Andy Fisher (Darren McGavin) seeks to relieve the monotony of his marriage to his wife, Gail (Elizabeth Allen) through extramarital affairs. Gail comes to realize that Andy will never outgrow his playboy tendencies, and decides to let the marriage break apart.
Title unknown - George's (Joe Maross) desire for success in his career endangers his family life. Also starring Dolores Sutton as Amy.
The Jealous Woman - Nan Martin's (?) jealousy threatens her marriage.
The Unwed Mother - Susan Durell (Sheree North) must decide whether to raise her child without a father or not bring it into the world. Susan's decision is alternately influenced by the unborn child's father, who reveals himself not to be the man she wants to marry, and another man she is drawn to romantically.
The Rebellious Teenager - Laurie Stanton (Merrie Spaeth), a young girl who leaves what she considers a stifling existence in a small town, leaves to search for her identity in NYC. Laurie finds herself in the subterranean world of Greenwich Village, meeting for the first time the many-faceted people who live and work in a large city. Laurie, confused and often discouraged, but reminded of the protected and provincial life she once led, must finally decide whether to remain in NYC, or return to her parents.
The Ugly Duckling (final episodes) - Eve (Zina Bethune) A plain-looking and insecure girl is concerned about her social life. She is convinced that she's an ugly duckling. Cast: Eileen Brennan, Madeline Sherwood, and Jeffrey Lynn.
@slick jones I've bolded the names of the characters/actors for your list. Murray Hamilton and Louise Latham were also slated for appearances, based on the first press releases, but I'm not sure that they actually did.