| Episode Description | Guest Star |
| Los Angeles Dodger pitcher who attempts to bring Greg back to reality after Greg professes his dream of being a professional baseball player. | |
| Thurston Howell on Gilligan's Island. In the Grand Canyon episodes he played an old man who thinks the Brady's are stealing his gold claim and locks them in a ghost town jail. | |
| Actor/singer whose parents were 'the Ricardos'. Marcia's diary gets mixed in with books for a charity drive, and Marcia fears that someone will find out she has a crush on him. | |
| Actress best known as Eunice 'Lovie' Wentworth Howell on Gilligan's Island. She played an eccentric client of Mike. | |
| Actor who worked with Robert Reed on the 1960's show 'The Defenders' (he played lawyer Lawrence Preston). He appeared in one Brady episode as Marcia's principal. | |
| Dodger 1st baseman whose girlfriend is Greg's math teacher. A crush on her makes Greg unable to concentrate. He promises Greg 2 tickets to Opening Day if he gets an A on his test. | |
| NASA Gemini 4 and Apollo 9 astronaut who appeared as himself as the guest on a talk show discussing UFOs. He signed autographs for Peter and Bobby after the talk show. | |
| Actress best known for 'Your Show of Shows' with Sid Caesar. She played Aunt Jenny. After seeing a childhood photo of Aunt Jenny, Jan fears she will grow up to look like her. | |
| Most famous for his horror film roles. He played an untrusting, villainous professor (Hubert Whitehead) in the last two of the three Hawaii episodes. | |
| Hawaiian singer who meets Cindy, Peter, and Bobby in Honolulu. | |
| NFL quarterback famous for his guarantee of a victory before Super Bowl III. He visits Bobby because he was told that Bobby has a terminal illness. | |
| Former Monkee - Marcia attempts to have him perform at her school dance. He eventually agrees to appear if Marcia will be his date. | |