Callum, a 20-year-old business management student from Cardiff University left Bradley blushing after saying: "Law and Order isn't exactly the best TV show, is it?" before adding that they killed his character off from Coronation Street because he was dull.
The 56-year-old host, who played Danny Baldwin in Coronation Street and the lead role of DS Ronnie Brooks in Law & Order: UK, agreed that Law & Order USA was "rubbish" but that his UK version should be given more credit.
Asking the hopeful what he would do if he won the money, "gambling fan" Callum replied: "Last year I went travelling on my gap year and got bitten by the bug," prompting Bradley to say: "You got bitten by a bug while travelling?"
Callum replied: "I did actually, bed bugs," leaving bewildered Bradley to ask: "Who's bed were you in? Leave it right there!"
The Chase contestant BLASTS Bradley Walsh and brands Anne Hegerty a PIG
The Chase: Callum mocked Bradley Walsh in Law & Order
It smells of pig poo in the countryside.
The player later revealed that he was hoping for Anne's number after the show, as Bradley looked shocked and said: "That really is gambling!"
One viewer tweeted: "Is Anne actually blushing? #TheChase #gangofchase," before another said: "My mom: 'Eww he is a granny basher' #thechase." A third posted: "Bradley Walsh is funny as f**k #thechase."
But things appeared to get more controversial as the episode unfolded, speaking to Bradley after a question, 58-year-old chaser Anne commented: "It smells of pig poo in the countryside."
Callum then cheekily quipped: "Might want to get out of your car then," leaving Bradley gasping for air, adding: "I think that's the number out the window then!"
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The Chase: Bradley Walsh was bewildered by Callum's remarks
The Chase: Callum mocked Anne Hegerty
The Chase: Bradley Walsh was not impressed with Callum's jibes
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: "Haha this Callum dude is well funny on #TheChase asking Anne out then saying she smells like a pig."
"Callum is brilliant on #thechase poor Anne and Bradders getting it tonight lol," posted another.
A third gushed: "Someone give the 20-year-old on #TheChase his own TV show. Absolutely hilarious."
Callum's fellow contestants, 52-year-old customer service representative Liz, and 48-year-old healthcare worker Michael missed out on a total of £37,000 after being caught with seven seconds to spare.