Johnson. Steven Bauer Avi (60 Episodes) Devon Bagby Conor Donovan (60 Episodes) Graham Rogers Jacob "Smitty" Smith (22 Episodes) Brooke Smith Frances Simpson (14 Episodes) Susan Sarandon Samantha Winslow (13 Episodes) Stephanie Erb Helen Miller (12 Episodes) Lili Simmons Natalie James (12 Episodes) Alan Alda Dr. Amiot (10 Episodes) Elliott Gould.