Shirley Jones Shirley Patridge Actor David Cassidy Keith Partridge Actor Susan Dey Laurie Partridge Actor Danny Bonaduce Danny Partridge Actor Brian Forster Christopher Patridge Actor Suzanne Crough Tracy Partridge Actor Dave Madden Reuben Kinkaid Actor Alan Oppenheimer Mr. Atwater Guest Star John David Carson Tom Baker Guest Star Robert F. Simon Mr. Gordon Guest Star Lou Frizzel George Guest Star Vic Tayback Harlan Laws Guest Star Gary Morgan Albert Guest Star