diff --git a/geth/accounts.py b/geth/accounts.py
index 3df889e..38047bd 100644
--- a/geth/accounts.py
+++ b/geth/accounts.py
@@ -29,7 +29,7 @@ def get_accounts(data_dir: str, **geth_kwargs: Any) -> tuple[str, ...] | tuple[(
     """
     validate_geth_kwargs(geth_kwargs)
 
-    command, proc = spawn_geth(  # type: ignore[no-untyped-call]
+    command, proc = spawn_geth(
         dict(data_dir=data_dir, suffix_args=["account", "list"], **geth_kwargs)
     )
     stdoutdata, stderrdata = proc.communicate()
@@ -122,7 +122,7 @@ def target_account() -> str:
     elif not isinstance(password, bytes):
         raise ValueError("Password must be either a path to a file or bytes")
 
-    command, proc = spawn_geth(geth_kwargs)  # type: ignore[no-untyped-call]
+    command, proc = spawn_geth(geth_kwargs)
 
     if isinstance(password, str):
         stdoutdata, stderrdata = proc.communicate()
diff --git a/geth/main.py b/geth/main.py
index f65a389..e5ddaaa 100644
--- a/geth/main.py
+++ b/geth/main.py
@@ -2,6 +2,10 @@
 
 import semantic_version
 
+from geth.utils.validation import (
+    validate_geth_kwargs,
+)
+
 from .utils.encoding import (
     force_text,
 )
@@ -17,6 +21,7 @@ def get_geth_version_info_string(**geth_kwargs):
             "`suffix_args` parameter"
         )
     geth_kwargs["suffix_args"] = ["version"]
+    validate_geth_kwargs(geth_kwargs)
     stdoutdata, stderrdata, command, proc = geth_wrapper(**geth_kwargs)
     return stdoutdata
 
@@ -25,6 +30,7 @@ def get_geth_version_info_string(**geth_kwargs):
 
 
 def get_geth_version(**geth_kwargs):
+    validate_geth_kwargs(geth_kwargs)
     version_info_string = get_geth_version_info_string(**geth_kwargs)
     version_match = re.search(VERSION_REGEX, force_text(version_info_string, "utf8"))
     if not version_match:
diff --git a/geth/process.py b/geth/process.py
index 6663bbd..e5b5feb 100644
--- a/geth/process.py
+++ b/geth/process.py
@@ -71,6 +71,7 @@ def __init__(
         stdout=subprocess.PIPE,
         stderr=subprocess.PIPE,
     ):
+        validate_geth_kwargs(geth_kwargs)
         self.geth_kwargs = geth_kwargs
         self.command = construct_popen_command(**geth_kwargs)
         self.stdin = stdin
diff --git a/geth/reset.py b/geth/reset.py
index f69d9c4..69daa5d 100644
--- a/geth/reset.py
+++ b/geth/reset.py
@@ -25,9 +25,7 @@
 
 
 def soft_reset_chain(
-    allow_live: bool = False,
-    allow_testnet: bool = False,
-    **geth_kwargs: Any,
+    allow_live: bool = False, allow_testnet: bool = False, **geth_kwargs: Any
 ) -> None:
     validate_geth_kwargs(geth_kwargs)
     data_dir = geth_kwargs.get("data_dir")
@@ -46,7 +44,7 @@ def soft_reset_chain(
     suffix_args.extend(("removedb",))
     geth_kwargs.update({"suffix_args": suffix_args})
 
-    _, proc = spawn_geth(geth_kwargs)  # type: ignore[no-untyped-call]
+    _, proc = spawn_geth(geth_kwargs)
 
     stdoutdata, stderrdata = proc.communicate(b"y")
 
diff --git a/geth/wrapper.py b/geth/wrapper.py
index 2f16226..0655346 100644
--- a/geth/wrapper.py
+++ b/geth/wrapper.py
@@ -26,6 +26,9 @@
     get_open_port,
     is_port_open,
 )
+from geth.utils.validation import (
+    validate_geth_kwargs,
+)
 
 is_nice_available = functools.partial(is_executable_available, "nice")
 
@@ -305,8 +308,8 @@ def construct_popen_command(  # type: ignore
     return builder.command
 
 
-# type ignored TODO rethink GethKwargs in a separate PR
 def geth_wrapper(**geth_kwargs):  # type: ignore[no-untyped-def]
+    validate_geth_kwargs(geth_kwargs)
     stdin = geth_kwargs.pop("stdin", None)
     command = construct_popen_command(**geth_kwargs)  # type: ignore[no-untyped-call]
 
@@ -334,10 +337,13 @@ def geth_wrapper(**geth_kwargs):  # type: ignore[no-untyped-def]
     return stdoutdata, stderrdata, command, proc
 
 
-# type ignored TODO rethink GethKwargs in a separate PR
 def spawn_geth(  # type: ignore[no-untyped-def]
-    geth_kwargs, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE
+    geth_kwargs: dict[str, Any],
+    stdin=subprocess.PIPE,
+    stdout=subprocess.PIPE,
+    stderr=subprocess.PIPE,
 ):
+    validate_geth_kwargs(geth_kwargs)
     command = construct_popen_command(**geth_kwargs)  # type: ignore[no-untyped-call]
 
     proc = subprocess.Popen(