In Cry Me A River (1), at the Degrassi Daily booth, Clare walks up to Katie asking to join. Katie says that people are selected to be a part of the staff, not just by signing up. Clare asks Katie how she can make that happen, so she tells Clare to write a 100 word article on how to get over a breakup. Later, she is seen rearranging the bulletin board for the paper when Clare walks in with a 5-page paper. Katie says that no one would read it because of its length, but Clare responds by saying "You don't know that." Katie gets mad because she doesn't appreciate somebody telling her how to do her job. She suddenly tells Clare that the staff is full, much to Clare's dismay. Later, Marisol says that Katie doesn't like Clare because she tries to avoid drama, and "Clare is drama."In Cry Me A River (2), we find out that Clare has been calling and emailing Katie all day, begging for her forgiveness because she is desperate for a second chance. Katie is seen in the newspaper room when Clare approaches her about getting her a second chance. Katie says that she doesn't need her on the staff. Clare tearfully starts telling Katie about her breakup with Eli last semester and how she needs something (like the school newspaper) to help her get over it. Annoyed with Clare's melodramatic babbling, Katie tells her to "wipe away those drama queen tears and get out of my face!" Later, Katie approaches Clare and says that Sav told her that she needed some grade ten students on staff and tells her that she's got the job. However, Katie is not happy that Clare turned to Sav (on the strength of being her best friend's brother) to convince her to give Clare the job. So, Katie assigns her to cover the play that Eli and Fiona are working on, knowing very well that Clare wouldn't be so thrilled with that idea. In Should've Said No (1), Katie walks up to Clare, asking if she has experience with Jake Martin, implying that she may have a crush on him. Clare says that he is seeing someone, and Katie seems confused, asking why would he agree to go to movie night with her if he had a girlfriend. Mad and heartbroken, Clare gets up and leaves even though Katie has 'at least ten more questions.'
In Dead and Gone (2), they are both seen helping Adam after he was shot by Vince.
In Sabotage (1), Katie and Jake see Clare walking in the hallway drunk and barefoot. When they take Clare to the garden, she tells them what happened between her and Dallas. Clare interviews them so she can write an article about the Ice Hounds.In Sabotage (2), Katie is seen at Clare's surprise birthday party. Clare and Katie high-five each after one of the guys is down.
In Scream (2), Katie offers to help Clare get revenge on Asher and supports her idea on getting revenge on him. Katie blocks the girls' washroom when Clare is taking nude pictures of herself and goes with her to Asher's office. As they walk into the elevator at The Interpreter, Katie is shown holding Clare's hand indicating she cares and trying to make Clare feel less scared about putting the pictures of herself on Asher's computer.
- Both girls have dated and are friends with Jake Martin.
- Both of them were in Degrassi School Newspaper in Season 11.
- Both girls have a conflict with Mike Dallas and Luke Baker, but Clare and Dallas became friends after Dallas apologized in rap.
- Both Katie and Clare were enemies with Imogen Moreno, though Clare became friends with her.
- Both girls were friends with Adam Torres.
- Clare is good friends with Katie's ex-boyfriend, Drew Torres.
- Clare and Katie were worried about Adam when he got shot with a gun.
- Both girls are known to be overachievers.
- Both have comforted their sisters during a tough time. Clare comforted Darcy when Adams was stalking her and Katie comforted Maya after she broke down about her ex-boyfriend's suicide.
- Both have had conflicts with their best friends.
- Both of their boyfriends have streaked.
- Both had health problems. Katie with bulimia and Clare with cancer.
- Both of their boyfriends have fought Mark Fitzgerald.
- Both have ran for Student Council President.
- Clare's friends, Alli and Jenna are friends with Katie's little sister, Maya.
- Both girls lost their virginity in season 12.
- Katie has a lot in common with Clare's sister, Darcy, just as Clare has things in common with Katie's sister Maya.
- Katie's ex-boyfriend, Jake Martin, and Clare's current boyfriend, Eli Goldsworthy, are best friends.
- Both had kissed Drew Torres but only Katie dated him.
- Both had gotten detention.
- Both had sex with Drew Torres, but only Katie dated him.
- Both have graduated from Degrassi.
- Both made their final appearances on Degrassi.
- Clare is the least favorite character of Katie's portrayer, Chloe Rose.
- Both of their sisters have attempted suicide.