Edwardian Age Mermaid Man is a tall human with black hair, white sideburns, and a black mustache. He wears a white boater hat with a orange ribbon around the hat's crown, a purple starfish over his nose, an orange and green striped shirt and pants, and a pair of purple clamshells attached to his shirt.
Role in comic book
Edwardian Age Mermaid Man first appears in a bonus gallery poster, alongside nearly every other Mermaid Man hero to exist. His existence in the poster foreshadows his appearance in the following comic.
He then appears in the comic Sidekick Blues, and is first seen in the opening floating above Mermaid Man. Later, he communicates with Mermaid Man from the Retirement Zone, where he warns him to not take Barnacle Boy for granted. However, Mermaid Man ignores the warning. Edwardian Age Mermaid Man later witnesses the Commanding Conch defeat Mermaid Man using Barnacle Boy's body, and he bemoans how he is unable to help while in the Retirement Zone.
In the second part, he sees the controlled Barnacle Boy trap Mermaid Man and realizes he is the only person that can save the day. He exits the Retirement Zone and frees Mermaid Man, before making him his Barnacle Boy. The two then burst into the room the Commanding Conch is in and try to stop him, but the shell orders Barnacle Boy to pelt them with waterballs.
After Barnacle Boy defeats the Commanding Conch, Edwardian Age Mermaid Man returns to the Retirement Zone.
The "Edwardian Age" in his name refers to the Edwardian era, a period of British history where Britain was under the reign of King Edward VII, and lasted from 1901 to 1910.