Main Characters Dr. John Carter 254 main appearances Dr. Kerry Weaver 249 main appearances Dr. Abby Lockhart 188 main appearances Dr. Luka Kovac 186 main appearances Dr. Mark Greene 179 main appearances Dr. Peter Benton 171 main appearances Dr. Elizabeth Corday 160 main appearances Dr. Susan Lewis 142 main appearances Dr. Jing-Mei "Deb" Chen 90 main appearances Nurse Carol Hathaway 6 main appearances Dr. Douglas "Doug" Ross 5 main appearances P.A. Jeanie Boulet 5 main appearances Dr. Neela Rasgotra 3 main appearances Nurse Samantha Taggart 3 main appearances Dr. Archie Morris 3 main appearances Dr. Tony Gates 2 main appearances Dr. Simon Brenner 2 main appearances Dr. Gregory Pratt 2 main appearances Dr. Hope Bobeck Dr. Cate Banfield Dr. Ray Barnett Dr. Michael Gallant Dr. Robert Romano Dr. Cleo Finch Dr. Dave Malucci Lucy Knight Dr. Anna Del Amico
Recurring Guest Characters Officer Litchman 4 guest appearances Ricky Abbott 4 guest appearances Rachel 4 guest appearances Jules Rubadoux 4 guest appearances Claire 4 guest appearances Dr. Burke 3 guest appearances Sean Simmons 3 guest appearances Sheila Johnson 3 guest appearances Nurse Lily Jarvik 3 guest appearances Zadro 3 guest appearances Loretta Sweet 3 guest appearances Helen 'Silvie' Rubadoux 3 guest appearances Nurse Janet 3 guest appearances Dr. P.K. Simon 3 guest appearances Frank Martin 2 guest appearances Dana Ellis 2 guest appearances Solomon Rourke 2 guest appearances Bobby Kenyon 2 guest appearances Walter Robbins 2 guest appearances Mei-Sun Leow 2 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥