A surprise last-minute addition to the OzComicCon events that are on this weekend and next weekend - Paul Eiding, who voiced Perceptor in the original series cartoon and 1986 Movie.

The Brisbane show is on this weekend - September 23-24.
The Sydney show is on the following weekend - September 30-October 1.

Basic entry tickets if bought online are $37.50 for a single day, and $50 for both days. But if you buy at the venue, it's $42.50 each day. (I'm not much into Australian conventions, but it sounds like a lot.)

There are presentations and displays over the two days, but it doesn't look like Paul is doing a presentation (or he wasn't signed up before the schedule was posted)... so might just be in the autograph area the whole weekend, or they might squeeze him in somewhere, and you'll need to look at the schedule when you get there.

The Brisbane online prices of the tokens to get an autograph or photo with Paul...
Autograph - $30 Saturday, $40 Sunday.
Photo - $40 Saturday, $30 Sunday.
(I think those Sunday prices are mixed up, as everyone else has the same prices on both days... and Paul's Sydney prices are $30 for Autographs and $40 for photos, on both days)