Main Characters
Dr. Marcus Welby
172 main appearances
Dr. Steven Kiley
172 main appearances
Recurring Guest Characters
Colleen
1 guest appearances
Mariam Garsen
1 guest appearances
Peter Barton
1 guest appearances
Carol Barton
1 guest appearances
Larry Adams
1 guest appearances
John Trask
1 guest appearances
Will MacAllister
1 guest appearances
Grandee MacAllister
1 guest appearances
Sylvie MacAllister
1 guest appearances
Adele Robbins
1 guest appearances
Dr. Joseph Xavier
1 guest appearances
3rd Schoolmate
1 guest appearances
Bill Robbins
1 guest appearances
Rico Renati
1 guest appearances
Dr. Hartnett
1 guest appearances
Luisa Renatti
1 guest appearances
Maria Renatti
1 guest appearances
Radiologist
1 guest appearances
Betty
1 guest appearances