Siobhan Smythe

Siobhan Smythe is the former second assistant of Cat Grant at CatCo Worldwide Media. After Kara outed her plan to offer her information on Supergirl to the Daily Planet, she was fired by Cat.

CatCo Worldwide Media
Siobhan Smythe was hired to be Cat Grant's new assistant alongside Kara Danvers. Kara was annoyed by being unable to pronounce her name correctly. Cat designated Kara as "Assistant #2" to her confusion. Siobhan promptly one-upped Kara's coffee while Winn looked on uncomfortably. Cat told Siobhan to get James Olsen and Lucy Lane into her office and told Kara to cover the phone, which she then broke. Siobhan later tried to flatter James but was brushed off. Siobhan saw them talking and walked away smirking.

She continued to antagonize Kara by sending her messages asking what's between her and James. Kara asked what she meant and she boldly sent another asking whether they were dating or friends with benefits, which Kara denied, while Winn Schott observed. Siobhan continued sending messages and upset her when she apparently accused her of being "obsessed" with James. Cat arrived and told her to keep it down. When Kara was called away she reminded Siobhan about Cat's lunch, but Siobhan recited it perfectly and mocked her for not doing her job, winked at Winn and smirked at his uncomfortable reaction. She later tried to listen on James and Lucy's private conversation. Later Siobhan smugly told Kara she did all her work for her. Kara bluntly said she didn't like her, but she retorted she wasn't there to make friends, but to be the next Cat Grant, detailing her massive ambitions, and Kara said they'd see who gets to stay.

Winn Schott
Siobhan continued to put down Winn but she was interrupted by Cat asking everyone in for a conference call. Siobhan showed a package that Cat should see personally, but Cat wants it open for all to see, so James takes the package and opens it to find a letter and thumb drive. A unimpressed Cat tells Siobhan to have the drive microwaved. Cat tells Siobhan to call her investment broker, but she stammers for a moment before Kara took the assignment. Winn offers to help Siobhan make copies, but she is upset over finding that her father was listed as a member of a cheating website thanks to Indigo and leaves Winn to make the copies Later Winn told Siobhan about his family and how he has felt just like her. Siobhan then kisses him but warns Winn not to say anything.

Fired
She continued her secret relationship with Winn until Kara caught them together in a supply closet. When Supergirl has her inhibitions destroyed by Red Kryptonite, Siobhan caught her on tape letting a Khund get away. When Cat refused to run the scoop, she plans to send it to her old employer, the Daily Planet. She planned to use the scoop as her route to returning to Metropolis as a reporter. However, Kara finds the tape, and lured her away from her desk so she can print the email. When Cat found out about Siobhan's treachery, she fired Siobhan on the spot, and persuaded Perry White not to rehire her either.

Frustrated at her apparent blackballing from National City's press, Siobhan plots revenge on Kara. She slips into CatCo Plaza after hours and sends a nasty email to Cat on Kara's account. The next night, Cat calls her in. She believes that Kara has been fired and that she is about to get her old job back. However, Cat had Winn analyze the email, and found that the typing pattern was an exact match to Siobhan's pattern. Cat brusquely ordered Siobhan out, and warned her that she would be arrested if she ever set foot at CatCo again. That night, a drunken Siobhan lays into Winn for turning on her, but Winn tells her that resorting to criminal and manipulative behavior will get her nowhere. Suddenly, one of Siobhan's spike heels breaks, sending her screaming over the balcony. To her surprise, the sound waves from her screams break her fall just as she is about to smash into the pavement--shattering the concrete in the process.

Powers and abilities

 * Sonic scream: Siobhan is able to emit high-amplitude screams. The sound waves from her screams are powerful enough to not only break her falls, but shatter thick concrete.