|Appearances and Portrayal|
|First appearance||Saving Psychic Raven|
|Last appearance||Saving Psychic Raven|
|No. of episodes||1|
|Portrayed by||Samm Levine|
Marvin was a telepath from the Psychic Institute.
Raven went to lunch with the guys, blowing off Eddie and Chelsea in the process. Marvin told her not to worry as they were only "normies" and not worth her time. Raven decided that if they didn't accept her old friends, they weren't worth it. Eventually, Marvin and the others accepted Eddie and Chelsea.