directed by Don Richardson
music by John Williams
other [created by] Irwin Allen
performer [penny] Angela Cartwright
performer [as aunt gamma] Sheila Mathews
performer [as don] Mark Goddard
performer [as dr. smith] Jonathan Harris
performer [as fedor] Arte Johnson
performer [as john] Guy Williams
performer [as judy] Marta Kristen
performer [as kraspo] Robert Foulk
performer [as maureen] June Lockhart
performer [as will] Bill Mumy
written-by Jackson Gillis