Yuri Lowenthal
Ben Tennyson (voice) (13 eps)
Greg Cipes
Kevin Levin (voice) (13 eps)
Dee Bradley Baker
Swampfire (voice) (13 eps)
Ashley Johnson
Gwen Tennyson (voice) (13 eps)
Paul Eiding
Max Tennyson (voice) (4 eps)
Wil Wheaton
Mike Morningstar / Darkstar (voice) (3 eps)
Tim Curry
Dr. Joseph Chadwick / Forever Knight #2 (voice) (1 eps)
Zeno Robinson
Alan Albright (voice) (1 eps)