Presentation - I don't want to be arsey

[ImJustMadAboutSaffron]

I'm working on a presentation I'm delivering at a symposium in about three weeks' time. This is a joint presentation with a colleague. The colleague doesn't have a PhD. Would you put on the front intro slide:

Jim Brown (job title) and Saffron MellowYellow (job title) or
Mr Jim Brown (job title) and Dr Saffron MellowYellow (job title) ??

It's assumed I have a doctorate anyway but I don't want to look like "pulling rank" especially as Jim has done the majority of the work and came up with the topic. The order of names is alphabetical.

Thanks.

Sorry as in - they are not going to assume that you did the presentation or are taking credit if he's doing the bulk of it, if you state your title.