LIS had many wonderful directors during it's three year run. Here is a list of who directed what episodes. With many thanks to Robert Herzog for comprising this list for us.

1 The Reluctant Stowaway 9/15/1965 TONY LEADER
2 The Derelict 9/22/1965 ALEX SINGER
3 Island in the Sky 9/29/1965 Tony LEADER
4 There Were Giants in the Earth 10/6/1965 LEO PENN
5 The Hungry Sea 10/13/1965 SOBEY MARTIN
6 Welcome Stranger 10/20/1965 ALVIN GANZER
7 My Friend, Mr. Nobody 10/27/1965 PAUL STANLEY
8 Invaders from the Fifth Dimension 11/3/1965 LEONARD HORN
9 The Oasis 11/10/1965 SUTTON ROLEY
10 The Sky Is Falling 11/17/1965 Sobey MARTIN
11 Wish Upon a Star 11/24/1965 Sutton ROLEY
12 The Raft 12/1/1965 Sobey MARTIN
13 One of Our Dogs Is Missing 12/8/1965 Sutton ROLEY
14 Attack of the Monster Plants 12/15/1965 JUSTUS ADDIS
15 Return from Outer Space 12/29/1965 NATHAN JURNA
16 The Keeper (1) 1/12/1966 Sobey MARTIN
17 The Keeper (2) 1/19/1966 HARRY HARRIS
18 The Sky Pirate 1/26/1966 Sobey MARTIN
19 Ghost in Space 2/2/1966 DON RICHARDSON
20 War of the Robots 2/9/1966 Sobey MARTIN
21 The Magic Mirror 2/16/1966 Nathan JURAN
22 The Challenge 3/2/1966 Don RICHARDSON
23 The Space Trader 3/9/1966 Nathan JURAN
24 His Majesty Smith 3/16/1966 Harry HARRIS
25 The Space Croppers 3/30/1966 Sobey MARTIN
26 All That Glitters 4/6/1966 Harry HARRIS
27 The Lost Civilization 4/13/1966 Don RICHARDSON
28 A Change of Space 4/20/1966 Sobey MARTIN
29 Follow the Leader 4/27/1966 Don RICHARDSON
30 Blast Off into Space 9/16/1966 Jerry JURAN
31 Wild Adventure 9/21/1966 Don RICHARDSON
32 The Ghost Planet 9/28/1966 Jerry JURAN
33 Forbidden World 10/5/1966 Don RICHARDSON
34 Space Circus 10/12/1966 Harry HARRIS
35 The Prisoners of Space 10/19/1966 Jerry JURAN
36 The Android Machine 10/26/1966 Don RICHARDSON
37 The Deadly Games of Gamma 6 11/2/1966 Jerry JURAN
38 The Thief from Outer Space 11/9/1966 Sobey MARTIN
39 Curse of Cousin Smith 11/16/1966 Justis ADDISS
40 West of Mars 11/30/1966 Jerry JURAN
41 A Visit to Hades 12/7/1966 Don RICHARDSON
42 Wreck of the Robot 11/14/1966 Jerry JURAN
43 The Dream Monster 12/21/1966 Don RICHARDSON
44 The Golden Man 12/28/1966 Don RICHARDSON
45 The Girl From the Green Dimension 1/4/1967 Jerry JURAN
46 The Questing Beast 1/11/1967 Don RICHARDSON
47 The Toymaker 1/25/1967 ROBERT DOUGLAS
48 Mutiny in Space 2/1/1967 Don RICHARDSON
49 The Space Vikings 2/8/1967 EZRA STONE
50 Rocket to Earth 2/15/1967 Don RICHARDSON
51 The Cave of the Wizards 2/22/1967 Don RICHARDSON
52 Treasures of the Lost Planet 3/1/1967 Harry HARRIS
53 Revolt of the Androids 3/8/1967 Don RICHARDSON
54 The Colonists 3/15/1967 Ezra STONE
55 Trip Through the Robot 3/22/1967 Don RICHARDSON
56 The Phantom Family 3/29/1967 Ezra STONE
57 The Mechanical Men 4/5/1967 SEYMOUR ROBBIE
58 The Astral Traveler 4/12/1967 Don RICHARDSON
59 The Galaxy Gift 4/26/1967 Ezra STONE
60 Condemned of Space 9/6/1967 Jerry JURAN
61 Visit to a Hostile Planet 9/13/1967 Sobey MARTIN
62 Kidnapped in Space 9/20/1967 Don RICHARDSON
63 Hunter's Moon 9/27/1967 Don RICHARDSON
64 The Space Primevals 10/4/1967Jerry JURAN
65 Space Destructors 10/11/1967 Don RICHARDSON
66 The Haunted Lighthouse 10/18/1967 Sobey MARTIN
67 Flight into the Future 10/25/1967 Sobey MARTIN
68 Collision of Planets 11/8/1967 Don RICHARDSON
69 Space Creature 11/15/1967 Sobey MARTIN
70 Deadliest of the Species 11/22/1967 Don RICHARDSON
71 A Day at the Zoo 11/29/1967 IRVING MOORE
72 Two Weeks in Space 12/13/1967 Don RICHARDSON
73 Castles in Space 12/20/1967 Sobey MARTIN
74 The Anti-Matter Man 12/27/1967 Sutton ROLEY
75 Target Earth 1/3/1968 Jerry JURAN
76 Princess of Space 1/10/1968 Don RICHARDSON
77 Time Merchant 1/17/1968 Ezra STONE
78 The Promised Planet 1/24/1968 Ezra STONE
79 Fugitives in Space 1/31/1968 Ezra STONE
80 Space Beauty 2/14/1968 Irving MOORE
81 The Flaming Planet 2/21/1968 Don RICHARDSON
82 The Great Vegetable Rebellion 2/28/1968 Don RICHARDSON
83 Junkyard in Space 3/6/1968 Ezra STONE