The host spoke to the hopeful 23-year-old theatre director from Belfast before he revealed his secret party trick.
Dean said: "I like to do impressions of people in the shower," leaving a bemused Bradley awkwardly saying: "Very good."
Following a range of impressions, including Morgan Freeman and Kermit the frog, Bradley looked disappointed, but it was nothing compared with what was to come from Paul.
The 46-year-old Chaser took to his seat and put Dean in his place for his lacklustre mimics.
ITV
The Chase: Bradley Walsh calls Paul Sinha RUDE for awkwardly belittling contestant
Rude! Unnecessarily so.
Bradley Walsh
"If your Morgan Freeman impression was the best of your skills you're in a lot of trouble," ribbed Paul.
Shocked, 56-year-old Bradley gasped: "Rude!" before adding: "Unnecessarily so."
Paul hit back saying: "If you thought that was rude, minus £4,000 is your lower offer."
Unimpressed viewers took to social media to berate the contestant's impression attempts.
ITV
The Chase: Dean performed a Morgan Freeman impression
The funniest moments on The Chase
Fri, January 13, 2017
The Chase: A round up of the funniest moments of TV quiz show.
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The chase: Funniest moments
One viewer tweeted: "He should be locked up in shawshank for that Morgan freeman impression #TheChase."
"Dude's going to be gutted when he watches that Morgan Freeman impression back @ITVChase #TheChase," posted another.
A third asked: "This dude calls himself an impressionist?? Are you having a laugh??? #TheChase."
"He is rubbish… Must sound different in the showers #TheChase #gangofchase," said a fourth.
The Chase continues tomorrow on ITV at 5pm.
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