Main Characters Dr. Nikki Alexander 171 main appearances Prof. Leo Dalton 106 main appearances Jack Hodgson 95 main appearances Dr. Harry Cunningham 94 main appearances Prof. Samantha "Sam" Ryan 60 main appearances Clarissa Mullery 59 main appearances Dr. Thomas Chamberlain 49 main appearances Trevor Stewart 24 main appearances Cara Connelly 16 main appearances Professor Gabriel Folukoya 20 main appearances Velvy Schur 20 main appearances Simone Tyler 10 main appearances Dr. Adam Yuen 4 main appearances
Recurring Guest Characters Stan Hughes 2 guest appearances Nunn 2 guest appearances Kate Parry 2 guest appearances June Hughes 2 guest appearances DCI Jim Sullivan 2 guest appearances Chloe 2 guest appearances Terry Fallon 2 guest appearances CS Haynes 2 guest appearances Jason Simons 2 guest appearances Craig Cross 2 guest appearances Andrew 2 guest appearances Julia Chamberlain 2 guest appearances Sheila Cross 2 guest appearances DC Howard Stent 2 guest appearances Alain Gontrard 2 guest appearances CID Officer 2 guest appearances Adrian 2 guest appearances Alec Smithson 2 guest appearances Conrad Devenish 2 guest appearances Ian Cross 2 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥