Dwayne Hickman
Dobie Gillis (36 eps)
Bob Denver
Maynard G. Krebs (36 eps)
Frank Faylen
Herbert T. Gillis (36 eps)
Florida Friebus
Winifred Gillis (36 eps)
Sheila James Kuehl
Zelda Gilroy (36 eps)
Mary Jackson
Mrs. Kenny (2 eps)
David Frankham
Derek (1 eps)
Tuesday Weld
Thalia Menninger (1 eps)
Alberto Morin
Captain Lopez (1 eps)
Max Showalter
Dr. Charles Graham (1 eps)
Hal Taggart
Spectator (uncredited) (1 eps)