Guest characters are characters from the Jetter Mars series who only appear in one episode and don't appear again
List of guest characters[]
| Episode | Guest character |
|---|---|
| Mars is Born, Year 2015
2015 nen Marusu tanjō (2015年マルス誕生) |
Faitan |
| Why is Mars crying? Marusu naze naku (マルスなぜ泣く) |
Mad Mask |
| Goodbye, little brother!
Sayōnara, otōto! (さようならオトウト!) |
Tack |
| Talent, the greatest robot in history Shijō saikō no robotto Tarento (史上最高のロボットタレント) |
HamEgg |
| The girl that came from the star of dreams Yume no hoshi kara kita shōjo (夢の星から来た少女) |
Dolly |
| Missing Miri Kieta Miri (消えた美理) |
Skunk Kusanagi |
| Where did dad go? Otōsan doko okonatta no? (お父さんどこ行ったの?) |
No.1 & No.2 |
| Lamp, the space trader Uchū no shimatsujin Ranpu (宇宙の始末人ランプ) |
Acetylene Lamp |
| My lil' brother's name is Melchi
Otōto no na wa Meruchi (弟の名はメルチ) |
Dr. Spice |
| My lil' brother's name is Melchi
Otōto no na wa Meruchi (弟の名はメルチ) |
Mrs. Tabasko |
| Freshman Mars Shin'nyūsei Marusu (新入生マルス) |
Mason |
| Jam Bond, Secret agent Himitsu chōhōin Jamu Bondo (ヒミツ諜報員ジャムボンド) |
Jam Bond |
| Honey, robot exchange-student Robotto Tenkōsei Hanī (ロボット転校生ハニー) |
Honey |
| The vampire from outer space Uchū kara no Kyūketsuki (宇宙からの吸血鬼) |
Kuroro |
| Melchi likes Mouster Meruchi no sukina Mousutā (メルチのすきなモウスター) |
Mouster |
| Zaza, the wandering planet Samayoeru wakusei Zaza (さまよえる惑星ザザ) |
Zazians |
| The samurai robot from the seventh year of the Tenpō era Tenpō shichi-nen Samurai robotto (天保七年サムライロボット) |
Yumi, Samurai robot |
| Resurrect, ancient robot Yomigaeru kodai robotto (よみがえる古代ロボット) |
Daedalus |
| Mars' first love Marusu no hatsukoi (マルスの初恋) |
Agunea, Marukubi Boon |
| Mars becomes a young boss Marusu waka oyabun ni naru (マルス若親分になる) |
Dr. Jin, Black |
| Mighty Robot Joe Tetsuwan Robotto Jō (鉄腕ロボット・ジョー) |
Joe Asnaro |
| Android Lullaby Andoroido no komoriuta (アンドロイドの子守唄) |
Mayumi |
| The wandering robot Sasurai no robotto (さすらいのロボット) |
Adios |
| Miri, alone again Mou hitori no Miri (もう一人の美理) |
Saromi |
| Adios returns Kaettekita Adiosu (帰ってきたアディオス) |
Dr. Kuromaru |
| The flight beyond tomorrow! Ashita ni mukatte habatake! (明日に向かって羽ばたけ!) |
Sari |