Katie Logan is a fictional character from The Bold and the Beautiful, an American soap opera on the CBS network.

[1] Tom had previously held roles on The Young and the Restless (Victoria Newman) and One Life to Live (Kelly Cramer).

She’s obsessed with my husband and she’s living in a fantasy world!” But it’s at that point that a seed of doubt is planted, since Taylor is not the type to make stuff up.

"[6] Tom liked how Katie wasn't written as "the pathetic victim" in confrontation against Bill for cheating, which she described as "very raw, physical and ugly" and some of the best material she's "ever had".

[7] Born on May 29,[8] Katie is the youngest daughter of Stephen (Patrick Duffy) and Beth Logan (Robin Riker).

She has three siblings: Storm (William deVry), Brooke (Katherine Kelly Lang), and Donna Logan (Jennifer Gareis).

Donna convinced her friend Rocco Carner (Bryan Genesse) to date Katie.

Against Brooke and Storm's wishes, Katie and Donna tracked down Stephen who had been estranged from the family for years.

In August 2007, Katie returns to Los Angeles to attend Donna's upcoming wedding to Thorne Forrester (Winsor Harmon).

On the day of the wedding, Katie overhears Donna confiding to her friend Jackie (Lesley-Anne Down) that she was not really in love with Thorne.

Katie becomes a member of the Forrester Creations team by working in their Public Relations department, having had PR experience whilst away from Los Angeles.

Despite the shocking revelation, Stephen insisted on taking the blame for Storm, to alleviate all the stress he seemed to have bottled up.

Until Katie's niece, Bridget, discovered a cool gene therapy, which had been done in Stockholm that could perhaps help.

The therapy broke her fever, and although it still meant Katie had to take her anti-rejection medication, the crisis had seemed to pass.

Bridget immediately left Nick and their marriage telling her husband and aunt that she is "finally free of both of you."

Katie's romantic life did not remain calm for long, as she started dating bad boy Bill Spencer shortly after his failed stint at romancing her sister, Donna.

After hooking up with Bill, Katie was appointed the new CEO of Forrester Creations, which was a newly acquired division of Spencer Publications.

Following Steffy's marriage to Liam, Katie is forced to deal with her ambivalence of not wanting her in the family.

During this period, she runs away and tries to have Bill leave her to be with his sister Brooke, whom Katie feels will be a better mother and wife.

With the help of psychiatrist Taylor Hayes, Katie soon overcomes her depression, and returns to her life with Bill.

Bill returned to Katie upon news that she had another heart attack after realizing that she made a mistake by leaving him.

Katie pretends to faint from a heart symptom to stop the wedding and confesses to Ridge that he is the love of her life and she could not let him marry her sister.

Hope brings Brooke to her business trip in Paris so Katie and Ridge have time to sort things out.

However, Ridge is upset to hear that Bill plans on marrying Brooke in Abu Dhabi after a trip to Dubai.

He convinces Katie and they tell Brooke, but she doesn't believe them and plans to wed Bill in Catalina.

In 2018, Katie begins dating Thorne Forrester, her sister Brooke's ex-husband and brother of her own former fiancé, Ridge.

"[9]Tom has received a number of honors for her portrayal of Katie, including a Daytime Emmy Award nomination in 2008 for Outstanding Supporting Actress in a Drama Series,[10] she later won for the same category in 2011.

[11] Tom's performance also earned her two Daytime Emmy Award wins for Outstanding Lead Actress in a Drama Series in 2012 and 2013, being nominated in 2014, 2017 and 2019.

[16] In June 2020, she received another win for Outstanding Lead Actress in a Drama Series for her work as Katie.

[17] In 2022, Charlie Mason from Soaps She Knows placed Katie fourth on his ranked list of The Bold and the Beautiful’s Best of the Best Characters Ever, commenting "Since the formidable Heather Tom stepped into the role of the supposed “ugly duckling” of the Logan family, the heroine has spread her wings and taken flight in ways that neither her sisters nor we dreamt she would when she was first introduced!