Leo Byrider is a surgical resident at Seattle Grace Hospital.



On his first day of internship, he was assigned to Izzie Stevens, who took the group on a tour of the hospital and used the same new intern speech that Bailey had used for her class to introduce them to the rules. Her interns viewed her as the dud, having heard that she'd spent some time on probation after killing someone.

After they spent the day saving a deer with Izzie, she said that they were the dud interns.

At the end of the day, all the new interns were in awe of George, who had delivered a baby that day, on what they all thought was his first ever shift as an intern. ("A Change is Gonna Come")

Callie and Izzie's FightEdit

When the rumor spread that Callie and Izzie were going to fight in the hospital cafeteria, the interns, along with several other hospital staffers, gathered to watch it happen. However, Callie hadn't intended to fight and the interns were disappointed, calling it a forfeit on Callie's part. ("The Heart of the Matter")

George's Housewarming PartyEdit

Claire, Graciella, Leo, and Mitch all attended a housewarming party thrown by George and Lexie. They all ended up coming to work drunk the next day. ("Piece of My Heart")

Darts TournamentEdit

The night after the party, the interns planned a darts tournament. When George invited Izzie, they started considering dropping out because they didn't want to play darts with their boss. ("Piece of My Heart")

Intern ExchangeEdit

When George O'Malley became a resident and the other residents had to choose an intern each to give to him, they lined all the interns up in the cafeteria and discussed their pros and cons right in front of them as they decided. ("There's No 'I' in Team")

Skills LabEdit

Owen stabbed four pigs as part of a skills lab and the interns and residents worked to keep them alive. ("Life During Wartime")

Intern CabalEdit

The interns continued to practice and were joined by Sadie Harris. Cristina became suspicious when Lexie knew the parallel pulley stitch, something she hadn't taught her, which led to her discovering what they were doing. She told them to shut it down. ("These Ties That Bind")

The interns then gave Steve an epidural to practice. ("In the Midnight Hour")

Sadie's AppendectomyEdit

The interns wanted to remove Steve's appendix while he was on the epidural, but he refused, so Sadie volunteered as long as she could remove one of theirs when they were done. They numbed her and Lexie used a book to guide her as she prepared to operate. When she hesitated, Sadie took the scalpel and made the first cut herself. When Lexie got to the appendix, it was inflamed, meaning this wasn't a routine procedure. Graciella said they should call a resident and then decided to leave when they wouldn't do it. Cristina then figured out that they hadn't shut it down like she told them to. Lexie came to Meredith because Sadie became unstable. Meredith and Cristina took over the surgery. They sent for Bailey and managed to save Sadie's life. The interns were then called in to present her case, admitting that they made choices that compromised her care. They were all then placed on probation until further notice. ("In the Midnight Hour")

Clinic WorkEdit

Leo, Sadie, and Megan all had to work with Izzie in the clinic for a day. When they did procedures on patients, she also had them perform them on her. ("Beat Your Heart Out")

Intern ContestEdit

Wanting to remind the interns, who were still on probation, why they loved medicine, Izzie Stevens put together a medical contest for them, which involved diagnosing patients based on symptoms presented to them and draping patients for specific surgeries. ("Before and After")

Patient XEdit

The interns worked on Patient X (actually Izzie using her own scans and labs) and presented a few ideas to Izzie. After more tests, they decided that Patient X was fine, before Izzie told them she was not fine. At the end of the day, they presented their final diagnosis: metastatic melanoma, with mets to the skin, liver, and brain. Her prognosis was very poor. They asked Izzie what their prize was, but she said the prize is that they didn't screw it up. ("I Will Follow You Into the Dark")

Face TransplantEdit

When David Young came into the hospital for his face transplant, the interns were prepared for his surgery and were told they'd likely never see another one again. Leo got in trouble for making fun of the patient. ("Stand By Me")

Waiting for IzzieEdit

When Izzie went into surgery to have the mets removed from her brain, the interns waited outside the OR. The residents let them because people are better than no people. ("Elevator Love Letter")

Izzie and Alex's WeddingEdit

He attended Alex and Izzie's wedding. ("What a Difference a Day Makes")

George's FuneralEdit

When George died, Leo attended the funeral. ("Good Mourning")

Hospital MergerEdit

When the merger between Seattle Grace Hospital and Mercy West Medical Center was announced, the interns all began working around the clock, because they were scared to go home out of fear that they'd end up getting cut from the program.

Cristina had Pierce, Megan, and Leo spy on the Chief for her and report back what they saw. ("I Always Feel Like Somebody's Watchin' Me")


Leo was one of Izzie Stevens' interns. Since he was never seen again after the first round of cutbacks, it's likely he was part of the 3/4 of his class cut. ("I Always Feel Like Somebody's Watchin' Me")

Izzie Stevens' InternsEdit

Notes and TriviaEdit

  • He drains pus and likes it.[1]



Episode StillsEdit



Community content is available under CC-BY-SA unless otherwise noted.