We've got an exclusive clip from the documentary The Captains, which follows William Shatner as he interviews every single captain from the Star Trek universe. Here is a sneak peak at his one on one with Captain Sisko!

Watch Avery Brooks tell William Shatner why he had to be the Captain on Deep Space 9S

The documentary will air on EPIX on July 22nd — but wait! There's more awesome news. They will also be hosting a panel at San Diego Comic-Con moderated by Kevin Smith. Here are the details.

William Shatner is joined by fellow Star Trek captain Avery Brooks to present a preview of the EPIX Pictures original documentary produced and directed by Shatner, in which he travels the world to interview all the actors who've played Starfleet captains. This lively discussion and Q&A session is moderated by Comic-Con fave Kevin Smith.

When: 10:15 AM - 11:15 AM
Where: Room 6BCF

The Captains will premiere July 22 at 8:00 pm EST on EPIX and EpixHD.com as part of SHATNERPALOOZA. What's SHATNERPALOOZA? Here you go...

[It's] a celebration of William Shatner's film and television work running on the EPIX linear channel, EPIX SVOD service and EpixHD.com from July 21 through July 30. SHATNERPALOOZA kicks off with a 48-hour marathon that will also include the world television premiere of William Shatner's Gonzo Ballet, an award winning EPIX Pictures original that takes an inside look at the staging of famed choreographer Margo Sappington's ballet set to the music and spoken word of Shatner's 2004 album, "Has Been." Shatner produced and stars in the documentary which includes appearances by composer Ben Folds and actor/musician Henry Rollins. Also featured will be the complete collection of the six original Star Trek films starring William Shatner in his seminal role as Captain Kirk, plus other rarely seen and sometimes controversial films including The Intruder, Big Bad Mama, Disaster on a Coastliner and Broken Angel, along with some highly entertaining TV fare like a classic 1964 episode of Outer Limits, a dazzling turn as the first host of Iron Chef and a no holds barred TV roast.