- Script
- Roy Thomas (credited)
- Pencils
- George Pérez (credited) (breakdowns); Joe Sinnott (finished art)
- Inks
- Joe Sinnott (credited)
- Colors
- Petra Goldberg (credited as P. Goldberg)
- Letters
- John Costanza (credited); Joe Rosen (pages 16, 31)
- Genre
- superhero
- Characters
- Fantastic Four: Human Torch [Johnny Storm] (featured); Mister Fantastic [Reed Richards] (featured); The Thing [Ben Grimm] (featured)
Fantastic Four: Invisible Girl [Susan Storm Richards] (featured)
The Crusader [Thelius] (introduction as Crusader); Alicia Masters; Calvin McClary (introduction); Mrs. McClary (introduction); Frankie Raye (introduction); Franklin Richards
- Reprints
- in Fantastic Four (Editions Héritage, 1968 series) #53 (Octobre 1975)
- in Atlanticserien (Atlantic Förlags AB, 1978 series) #6/1978 ([juni] 1978)
- in Atlantic-serien [Fantastiske Fire] (Atlantic Forlag, 1978 series) #6/1978 ([juni] 1978) [minus 3 pages]
- in Nova (Editions Lug, 1978 series) #68 (5 septembre 1983)
- in Fantastic Four Visionaries: George Pérez (Marvel, 2005 series) #1 ([August] 2005)
- in Atlas: Marvel Boy (Marvel, 2010 series) ([June] 2010)
- in Essential Fantastic Four (Marvel, 1998 series) #8 ([July] 2010) [black and white]
- in Fantastic Four: Crusaders and Titans (Marvel, 2013 series) (2013)
- in Marvel Masterworks: The Fantastic Four (Marvel, 2003 series) #16 (2014)
- in Fantastic Four Epic Collection (Marvel, 2014 series) #9 - The Crusader Syndrome (2023)
- Keywords
- Baxter Building; Greenwich Village; Light Bands; New York City; Washington Square Park
Re-intro, as the Crusader, of the Marvel Boy from Marvel Boy (Marvel, 1950 series) #1.
- Script
- Roy Thomas
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- typeset
Letters from Jan Cunningham, Stephen Perry, Bruce Spizer, and Brien Lee.