Photo ops with David Tennant and Billie Piper at the Alamo City Comic Con are now available to book online here.
Solo photos with David will be $100 and a duo photo with David and Billie will be $165. Solo photos with Billie are also available for $60.
The pair will appear on Saturday 29th October and are also expected to take part in a panel with fellow Doctor Who star Karen Gillan.
Standard and platinum VIP packages are on sale now via the event website.
Also appearing at the event are Gotham stars Sean Pertwee, Camren Bicondova and Robin Lord Taylor.