Australia's mercurial fast bowler has been back with a vengeance, when the weather has allowed, bouncing out Jonathan Trott at Emirates Old Trafford and then Kevin Pietersen at Edgbaston.
The left-armer has been a menacing presence in between too, and is out to keep England and their supporters on the back foot in Saturday's fourth one-day international at the SWALEC Stadium.
Johnson was not selected for this summer's Ashes, and therefore passed the baton to David Warner as the home crowd's nominated pantomime villain.
He has returned with a point to prove, however, that at approaching 32 he is bowling as well and as fast as ever - and has more in store for England if he gets the nod for the Ashes rematch Down Under.
"I have that confidence and belief in my bowling," he said.
"Whoever I'm up against, I'm confident I can get them out and intimidate them - that's what I'll be doing here and in every game going forward. That's how I bowl and will continue to bowl."
Johnson senses he may have already struck some psychological blows against the opposition - as well as physical ones, after Trott was hit on the helmet in Birmingham.
"I hope they are wary of me," he said. "I just have to keep being aggressive and keep it simple."
His Ashes exclusion was hard to take, and has made him all the more determined.
"It was disappointing to find out I wasn't in the squad because I thought I'd been performing, coming back from the injury," he said.
"Watching the first ball of an Ashes series was quite hard, but then I got over it and knew I had to keep working hard."
The main prize will not be NatWest Series victory - Australia are 1-0 up, with two to play - but a chance to add to his 51 Test caps.
"I feel like I've been performing ... I want to play Test cricket, that's my number one format," he said.
"I hope I get the chance to play against England and win an Ashes series."
If so, Trott and Pietersen will be in his sights again.
"When you can get those guys out with the short ball, it can be very intimidating - and the short ball is part of my armoury," he said.
"When I've been at my best, being aggressive, I bowl that 'armpit' ball or a nice ball to the throat of the batsman - and then I try to use the ball swinging, getting it up there for the lbws or bowleds or catches behind. I try to keep it as simple as I can."
If that riles the crowd too, so much the better.
Johnson admits it was not always so, but these days he will lose no sleep over the banter - including 'that' song about bowling 'to the left, to the right'.
"I didn't like it when I first came over. I didn't expect it," he said.
"I'd been in some pretty good form throughout 2009 and I didn't really expect to cop as much flak as I did. Now, it doesn't bother me ... I know what to expect over here now."
He is even tempted sometimes to join in with the 'Barmy Army' lyrics.
"You start to sing the songs in your head - it's pretty catchy," he said. "I think I'm always going to cop it over here now.
"As soon as I bowl a wide, I get it. But it's all part of the game, and I've learnt to live with it and enjoy it.
"You are out there in the middle, copping a fair bit of stick; you need to interact a bit.
"If you can get a smile or a bit of laughter with the crowd, it's handy. They are trying to put you off their game - and if that's the best they've got, great."
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- Jonathan Trott
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