Presto Change-O
The Venture Bros. character
Presto Change-O
Presto Change-O
First appearance

The Unicorn in Captivity
Voiced by

Mark Hamill
Gender Male
Occupation Supervillain

Jovial manner
Superhuman elasticity
Current Alliances

The Guild of Calamitous Intent

Decoy team

Presto Change-O is a jovial supervillain with the power to change his physical form, though he always retains his colors. He is a member of the Guild of Calamitous Intent.

Character History

When introduced in The Unicorn in Captivity, Presto Change-O was part of a team with CopyCat, Tunnel Vision, Ramburglar, Dot Com, Driver X, and The Monarch who had joined together to steal Dr. Venture's teleporters from VenTech Tower. However, the job was but a ruse by CopyCat to get a group of decoys for the real theft attempt.

Despite CopyCat's betrayal and Ramburglar's death, Presto-Change-O managed to swipe one of the teleporters, and he and Tunnel Vision fled into the sewers with Brock Samson hot on their heels.

Presto Change-O attempted to run interference with Samson in order to allow Henchman 21 and Dot Com to escape with the teleporters. Samson, however, was unimpressed with Presto Change-O's stair climbing machine form and stabbed him in the head. The blow left the shapechanger writhing helplessly in pain, oozing blue-green blood from the knife wound but seemingly still alive. Only 21 was able to escape.

Episode Appearances

Season 7


Presto Change-O takes on a number of shapes and forms in the episode The Unicorn in Captivity:


  • Presto Change-O's whimsical voice is very similar to that of The Joker, the most famous supervillain from Batman: The Animated Series, who was also voiced by Mark Hamill.
  • Presto Change-O's superhumanly elastic abilities are nearly identical to those of Plastic Man, while his impish appearance evokes the 5th dimensional supervillain Mister Mxyzptlk (if Jack Kirby was his tailor).
  • Presto Change-O bears a strong resemblance to the Marvel Comics character Impossible Man, who also features both a green-and-purple color scheme and comedic shapeshifting abilities.
  • It is unclear as to whether or not Presto Change-O was killed when Brock stabbed him. Despite the wound being between the eyes, he did not stop moving afterwords.
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