Hi
I have these fonts but his is italic, can I change all characters to regular
Yes, you can use the Italic Transform, but with a negative italic angle to straighten the glyphs.
My test font has an italic angle of 6° but your font looks to have a steeper angle than that. The italic angle in degrees will be shown on the Font Properties Identification tab. If the font is classified as an italic font, you will have to modify a few fields (and the name of course) to make a Regular version.