Memory Rick is a memory representation of a younger version of Rick C-137 from Birdperson's mind. His personality is based on Birdperson's memories of him meaning his own memories prior meeting Birdperson are "generic and bird themed". His personality varies significantly to his older counterpart being more positive and helpful. He is excited by Star Wars battles, loves the idea of his own Vietnam and disgusted at the state of his future self. He is described by real Rick as an "idealistic hipster douche". In return, Memory Rick detests the depression of his counterpart by refusing to become real and possibly turning into him.

Memory Rick is similar to his older self in that he is incredibly intelligent. He was able to find a way to continue his existence by transferring to Real Rick’s mind. He also shares his counterparts indulges, enjoying getting high and having fun. The biggest similarity, the two share is the love for their wife. When Memory Rick discovered that a memory of her was separated from the real Rick, he went through great lengths to reunite with her and was happy at the thought of spending eternity with her.

Welcome to the mind space, now tell me what you’re doing here in Rick’s head?