Please help to find out the common name for the Actor John La Motta / John LaMotta / Johnny LaMotta.

Here the CLT results:

Quote:

"John La Motta" is credited in the following 58 titles (121 profiles)
"John LaMotta" is credited in the following 57 titles (105 profiles)
"Johnny LaMotta" is credited in the following 2 titles (5 profiles)

The results for John La Motta and John LaMotta are really close together. I checked the listed credits in my collection and found some errors!

"John La Motta": 20 confirmed
ALF Season 1 (confirmed by awilbohk)
ALF Season 2 (confirmed by awilbohk)
ALF Season 3 (confirmed by awilbohk)
ALF Season 4 (confirmed by awilbohk)
American Ninja (confirmed by MickySpoon)
Cagney & Lacey: Together Again (confirmed by greyghost)
Caroline in the City Season 4 (confirmed by T!M)
ER Season 1, Episode 6 (confirmed by bbbbb)
Frasier Season 2 (confirmed by T!M)
Growing Pains Season 2, Episode 8 (confirmed by awilbohk)
Gypsy (confirmed by awilbohk)
Hardcastle & McCormick Season 1 (confirmed by awilbohk)
Knight Rider Season 3 (confirmed by awilbohk)
Lois & Clark: The New Adventures of Superman Season 1 (confirmed by awilbohk)
Ninja III: The Domination (confirmed by MickySpoon)
Remington Steele: Season 5 (confirmed by awilbohk)
Revenge of the Ninja (confirmed by MickySpoon)
Stingray (confirmed by awilbohk)
The Godson (confirmed by awilbohk)
Vampire in Brooklyn (confirmed by Merrik)

"John LaMotta": 12 confirmed
ALF Season 2, Episodes 19 and 20 (confirmed by T!M)
At the Sinatra Club (confirmed by awilbohk)
Bloodfist 4: Die Trying (confirmed by MickySpoon)
Breakin' 2: Electric Boogaloo (confirmed by MickySpoon)
Five Aces (confirmed by MickySpoon)
Frasier Season 5 (confirmed by T!M)
Growing Pains Season 1, Episode 21 (confirmed by awilbohk)
Motel Blue (confirmed by bigdaddyhorse)
Northern Exposure: Season 5: Ep. 14 (confirmed by MickySpoon)
Running Scared (confirmed by T!M)
The Nanny Season 3 (confirmed by SpaceFreakMicha)
The Scout (confirmed by ateo357)

"Johnny LaMotta": 0 confirmed

Not valid or uncredited
Dark Shadows (TV series) > uncredited, source Dark Shadows Wiki

List of not confirmed (4) he is credited:
Birch Street Gym
Lookin' Italian
Mean Johnny Barrows
The Gift of Love

___________________________________________
Definition:
most confirmations
the first two or more are undecided (only if there is no most confirmed)
less confirmations than the most confirmed or the undecided (if available)

American Ninja -> John La Motta

Revenge of the Ninja -> John La Motta (as Joe)

In 'ALF: Season Two' he's credited both as John La Motta (most episodes) *and* as John LaMotta (episodes #19/#20).

'Caroline in the City: The Complete Series Four': John La Motta
'Frasier' (Season 2):  John La Motta
'Frasier' (Season 5):  John LaMotta
'Running Scared': John LaMotta

Vampire in Brooklyn: John La Motta

The Scout - John LaMotta - Elevator Guard  visual check.

Quoting awilbohk:

Quote:
Sorry, but I checked it twice and he is definitely credited as John La Motta!

Not on my copies, I'm afraid. And I even have two copies: both the American R1 Lions Gate Home Entertainment release, *and* a R2 Warner Home Video release. Both show John LaMotta - note that the episode titles are 'Someone to Watch Over Me (Part 1)' and 'Someone to Watch Over Me (Part 2)'. I've re-checked both and they both show this:





With copies of both the cut-down/syndicated region 1 version and the uncut region 2 version, I'd be fairly amazed if there actually was a third version (with different credits, no less) out there... Instead, I expect that you and I have been looking at different episodes, possibly due to the fact that I didn't mention the exact episode titles before...

Quoting awilbohk:

Quote:
Please help to find out the common name for the Actor John La Motta / John LaMotta / Johnny LaMotta.

List of not confirmed he is credited:
ER Season 1

ER 1.06 (Chicago Heat)