Abbott and Costello Meet the Mummy

Peter Patterson is a quick-witted, fast-talking agent who becomes entangled in the treasure-hunt plot with Costello. He negotiates with Madame Rontru and seeks a sizable payoff from the medallion, revealing his opportunistic streak. His role often places him at the center of chaotic schemes, serving as a catalyst for the duo’s escapades.

Freddie Franklin is the good-natured but easily swayed partner who blunders into danger with a carefree attitude. His antics with the medallion create humorous situations and misunderstandings. He provides the lighthearted foil to Peter Patterson's scheming, keeping the duo's chemistry intact.

Madame Rontru is a calculating businesswoman determined to steal the treasure of Princess Ara. She manipulates both the archaeologists and the duo to advance her plans, showing a ruthless willingness to take risks. Her scheming nature drives the plot and provides the villains’ counterpart to Abbott and Costello.

Semu is a follower of Klaris who pretends to be an archaeologist to guide the group toward the tomb. He is cunning and ready to murder for the treasure, illustrating the film’s treacherous antagonist side. His duplicity pushes the heroes into greater peril and a race to uncover the medallion’s true purpose.

Klaris is the mummy guardian whose legend motivates the adventure. His apparent return and the medallion’s power instill danger and urgency in the hunt. Klaris’s fate, revealed in the climactic sequence, underscores the perils tied to greed and greed-driven schemes.

Dr. Gustav Zoomer is the physician who explains the mummy legend and the medallion’s function. He becomes a target in the conflict surrounding the treasure hunt, advancing the plot toward the tomb. His presence provides a scholarly frame for the archaeologist-adventure elements.

Iben is one of Semu’s followers who murders Dr. Zoomer and steals the mummy to profit from the medallion. He embodies the violent, mercenary edge of the antagonists and heightens the danger faced by the protagonists. His actions escalate the stakes of the treasure quest.

Hetsut is another of Semu’s followers who assists in pursuing the medallion and the heroes. His loyalty to Klaris emphasizes the threatening dynamic within the group and contributes to the chase that drives the plot forward. He acts as a secondary antagonist amid the broader scheme.