While contributing the Jean Rollin film La nuit des traquées I came across two different crew members with very similar names and versatile jobs they were doing. Both were editors or directors among others.
I could imagine that they are related in some way but I don't know.
Here is an overview of both of them and the many strange films they were working at :

CLT:
"G. Kikoine" is credited in the following 3 titles (3 profiles)
"Gerard Kikoine" is credited in the following 8 titles (8 profiles)
"Gerard Kikoïne" is credited in the following 1 titles (6 profiles)
"Gérard Kikoïne" is credited in the following 13 titles (15 profiles)
"G. Kikoïne" is credited in the following 1 titles (1 profiles)
"Gilou Kikoïne" is credited in the following 1 titles (1 profiles)
"Gilbert Kiroine" is credited in the following 1 titles (1 profiles)
"Gilbert Kikoine" is credited in the following 6 titles (15 profiles)
"Gilbert Kikoïne" is credited in the following 9 titles (13 profiles)

Name variants for Gérard Kikoïne

G. Kikoine (1 confirmed, 1 unconfirmed):
La comtesse perverse / Countess Perverse
Plaisir à trois (confirmed by ninso4)

Gerard Kikoine (7 unconfirmed):
La clinique des fantasmes / Rx for Sex
Buried Alive
Retourne-moi c'est meilleur / Boarding Girls' Secrets / Secret School for Young Girls / Secrets of College Women
La ronde de l’amour / Love Circles
Attention fillettes!… / In the Heat of St. Tropez
Vacances à Ibiza
Parties fines / Education of the Baroness

Gerard Kikoïne (1 unconfirmed):
Edge of Sanity

Gérard Kikoïne (11 unconfirmed, 1 invalid):
Chaudes adolescentes / The Arrangement
Bon chic, bon genre, mais... salopes!! / French Infernal
La comtesse perverse / Countess Perverse
Attention fillettes!… / In the Heat of St. Tropez
Journal intime d'une jeune fille en chaleur / Adorable Lola / Lolita Call Girl
Plaisir à trois
Le journal intime d'une nymphomane / Diary of a Nymphomaniac
Lady Libertine / Frank and I
La ronde de l’amour / Love Circle
Enquêtes
Le sexe qui parle / Pussy Talk
Sweet Young Girls


Name variants for Gilbert Kikoïne

G. Kikoïne (1 confirmed):
Célestine... bonne à tout faire (confirmed by ninso4)

Gilou Kikoïne (1 unconfirmed):
Mandabi / The Money Order

Gilbert Kiroine (1 unconfirmed):
Rats - Notte di terrore / Rats: Nights of Terror / Blood Kill

Gilbert Kikoine (2 confirmed, 3 unconfirmed):
Buried Alive
La nuit des traquées (confirmed by ninso4)
Rats - Notte di terrore / Rats: Nights of Terror / Blood Kill
Blade Violent - I violenti / Women's Prison Massacre / Emanuelle in Prison
Le complot / The Conspiracy (confirmed by ninso4)

Gilbert Kikoïne (4 unconfirmed, 3 invalid):
Blade Violent - I violenti / Women's Prison Massacre / Emanuelle in Prison
Célestine... bonne à tout faire
Le complot / The Conspiracy
Emitaï / Hementhal / God of Thunder
La nuit des traquées
Rats - Notte di terrore / Rats: Nights of Terror / Blood Kill
Coplan sauve sa peau / Coplan Saves His Skin / Requiem for a Snake

While contributing the Jean Rollin film La nuit des traquées I came across two different crew members with very similar names and versatile jobs they were doing. Both were editors or directors among others.
I could imagine that they are related in some way but I don't know.
Here is an overview of both of them and the many strange films they were working at :

CLT:
"G. Kikoine" is credited in the following 3 titles (3 profiles)
"Gerard Kikoine" is credited in the following 8 titles (8 profiles)
"Gerard Kikoïne" is credited in the following 1 titles (6 profiles)
"Gérard Kikoïne" is credited in the following 13 titles (15 profiles)
"G. Kikoïne" is credited in the following 1 titles (1 profiles)
"Gilou Kikoïne" is credited in the following 1 titles (1 profiles)
"Gilbert Kiroine" is credited in the following 1 titles (1 profiles)
"Gilbert Kikoine" is credited in the following 6 titles (15 profiles)
"Gilbert Kikoïne" is credited in the following 9 titles (13 profiles)

Name variants for Gérard Kikoïne

G. Kikoine (2 confirmed):
La comtesse perverse / Countess Perverse (confirmed by AIAustria)
Plaisir à trois (confirmed by ninso4)

Gerard Kikoine (7 unconfirmed):
La clinique des fantasmes / Rx for Sex
Buried Alive
Retourne-moi c'est meilleur / Boarding Girls' Secrets / Secret School for Young Girls / Secrets of College Women
La ronde de l’amour / Love Circles
Attention fillettes!… / In the Heat of St. Tropez
Vacances à Ibiza
Parties fines / Education of the Baroness

Gerard Kikoïne (1 unconfirmed):
Edge of Sanity

Gérard Kikoïne (10 unconfirmed, 2 invalid):
Chaudes adolescentes / The Arrangement
Bon chic, bon genre, mais... salopes!! / French Infernal
La comtesse perverse / Countess Perverse
Attention fillettes!… / In the Heat of St. Tropez
Journal intime d'une jeune fille en chaleur / Adorable Lola / Lolita Call Girl
Plaisir à trois
Le journal intime d'une nymphomane / Diary of a Nymphomaniac
Lady Libertine / Frank and I
La ronde de l’amour / Love Circle
Enquêtes
Le sexe qui parle / Pussy Talk
Sweet Young Girls


Name variants for Gilbert Kikoïne

G. Kikoïne (1 confirmed):
Célestine... bonne à tout faire (confirmed by ninso4)

Gilou Kikoïne (1 unconfirmed):
Mandabi / The Money Order

Gilbert Kiroine (1 unconfirmed):
Rats - Notte di terrore / Rats: Nights of Terror / Blood Kill

Gilbert Kikoine (2 confirmed, 3 unconfirmed):
Buried Alive
La nuit des traquées (confirmed by ninso4)
Rats - Notte di terrore / Rats: Nights of Terror / Blood Kill
Blade Violent - I violenti / Women's Prison Massacre / Emanuelle in Prison
Le complot / The Conspiracy (confirmed by ninso4)

Gilbert Kikoïne (4 unconfirmed, 3 invalid):
Blade Violent - I violenti / Women's Prison Massacre / Emanuelle in Prison
Célestine... bonne à tout faire
Le complot / The Conspiracy
Emitaï / Hementhal / God of Thunder
La nuit des traquées
Rats - Notte di terrore / Rats: Nights of Terror / Blood Kill
Coplan sauve sa peau / Coplan Saves His Skin / Requiem for a Snake