"A pure-hearted young martial artist. Since he's so pure, he's easily fooled."
Dennish is a dark haired Earthling with a face that resembles Krillin's. He wears a red version of Android 18's Red Ribbon Army logo Jacket, but with pants and shoes resembling Pan's.
Dennish has a pure-hearted personality that is so pure that he is easily fooled. However he is willing to help people out if they are in need.
Most of Dennish's history is unknown, but presumably like most of the fighters in the Timespace Tournament, he is from one of the many timelines connected to the Timespace Rift as a result of Tekka and Pinich's wish to Shenron.
While helping Bulla promote the clothing store she helped setup in Satan City by handing out leaflets, Tekka's Team encounters Dennish and hands him one of Bulla's leaflets. He leaves to go check it out. After passing out all the leaflets, Tekka's team return to find Bulla talking to Dennish, who leaves shortly afterwards. Later after learning how to recruit new teammates from Master Roshi and return to Satan City, Tekka's Team hears a woman's screams and immediately go to investigate. They find a woman being accosted by two men, who Tekka's team manage to defeat. However they find the screaming woman was none other than Bulla. Having heard the screams Dennish runs over to help, but finds Bulla has been saved by Tekka's team and leaves. It is then revealed that Bulla was not actually in any danger as the two men where helping her pretend to be a damsel-in-distress in order to have Dennish come in and rescue her, as part of an attempt to get him to notice her (it is revealed that Bulla had developed a crush on him), presumably cause her feminine charms had failed to work on him due to his pure heartedness. Bulla tells Kid Trunks and Tekka's team to leave her alone and runs off with her two helpers. Later behind Orange Star High School, Tekka's team hear another scream and rush to aid the person in trouble, but once again accidentally fall for Bulla's damsel-in-distress act and beat up her two new helpers. Dennish arrives shortly afterwards and leaves again once he sees that everything is alright, to the frustration of Bulla who angrily warns her brother and his companions not to interfere or else. However, on a floating island under the floating island where Satan City sits, they hear another woman scream and once again find Bulla. However this time it turns out that it was a trap set up by Bulla for Tekka's team as she had grown tired of their interference and wanted to teach them a lesson, leading to a fight with Bulla who losses due to her lack of training. However she seemingly loses interest in Dennish, as she is touched by Tekka's reason for coming to the rescue each time and joins Tekka's Team.
Dennish himself can be recruited by Tekka's team after learning how to recruit new allies from Master Roshi. Dennish can be fought as an enemy in several areas and can be recruited by KO'ing him with a Zenkai Attack.
Being listed as a C-Rank fighter in Dragon Ball Fusions, Dennish's power seems comparable to fighters such as Nail, Yamcha, Chiaotzu, Videl, Bulla, Raditz, Gine, Saibamen, Nappa, and Guldo, and could possibly comparable to a Cell Jr. (though this seems unlikely as Zarbon, Dodoria, and the members of the Ginyu Force aside from Guldo are listed as B-Rank fighters).