Main Characters Dr. William H. Masters 46 main appearances Virginia E. Johnson 46 main appearances Libby Masters 43 main appearances Betty DiMello 30 main appearances Dr. Austin Langham 17 main appearances Dr. Ethan Haas 11 main appearances
Recurring Guest Characters Betty DiMello 3 guest appearances Lester Linden 26 guest appearances Dr. Austin Langham 5 guest appearances Provost Barton Scully 20 guest appearances Tessa Johnson 18 guest appearances Jane Martin 16 guest appearances Dr. Ethan Haas 1 guest appearances Dr. Lillian DePaul 11 guest appearances Johnny Masters 11 guest appearances Henry Johnson 9 guest appearances Vivian Scully 9 guest appearances Margaret Scully 9 guest appearances Paul Edley 9 guest appearances Nancy Leveau 9 guest appearances Art Dreesen 9 guest appearances Herb Spleeb 8 guest appearances Dan Logan 8 guest appearances Estabrooks Masters 7 guest appearances Flo Packer 7 guest appearances Barbara Sanderson 7 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥